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Finding the Fourth Proportional to 276,329.76, 381,335.08 and 157,097.76

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Solution

The fourth proportional to 276,329.76, 381,335.08 and 157,097.76 is: 216,794.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,329.76 : 381,335.08 = 157,097.76 : x
  2. Step 2: Convert to fraction form
    276,329.76/381,335.08 = 157,097.76/x
  3. Step 3: Cross multiply
    276,329.76x = 381,335.08 × 157,097.76
  4. Step 4: Simplify right side
    276,329.76x = 59,906,886,877.42
  5. Step 5: Solve for x
    x = 59,906,886,877.42/276,329.76
  6. Step 6: Final answer
    x = 216,794.92

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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.