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Finding the Fourth Proportional to 372,000.76, 513,366.90 and 202,235.56

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Solution

The fourth proportional to 372,000.76, 513,366.90 and 202,235.56 is: 279,088.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,000.76 : 513,366.90 = 202,235.56 : x
  2. Step 2: Convert to fraction form
    372,000.76/513,366.90 = 202,235.56/x
  3. Step 3: Cross multiply
    372,000.76x = 513,366.90 × 202,235.56
  4. Step 4: Simplify right side
    372,000.76x = 103,821,042,506.96
  5. Step 5: Solve for x
    x = 103,821,042,506.96/372,000.76
  6. Step 6: Final answer
    x = 279,088.25

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Half scale
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Double scale
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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.