Home / 372,436.92-513,974.57-211,298.76

Finding the Fourth Proportional to 372,436.92, 513,974.57 and 211,298.76

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Solution

The fourth proportional to 372,436.92, 513,974.57 and 211,298.76 is: 291,598.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,436.92 : 513,974.57 = 211,298.76 : x
  2. Step 2: Convert to fraction form
    372,436.92/513,974.57 = 211,298.76/x
  3. Step 3: Cross multiply
    372,436.92x = 513,974.57 × 211,298.76
  4. Step 4: Simplify right side
    372,436.92x = 108,602,188,256.04
  5. Step 5: Solve for x
    x = 108,602,188,256.04/372,436.92
  6. Step 6: Final answer
    x = 291,598.88

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.