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Finding the Fourth Proportional to 157,444.79, 217,265.56 and 89,452.31

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Solution

The fourth proportional to 157,444.79, 217,265.56 and 89,452.31 is: 123,439.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,444.79 : 217,265.56 = 89,452.31 : x
  2. Step 2: Convert to fraction form
    157,444.79/217,265.56 = 89,452.31/x
  3. Step 3: Cross multiply
    157,444.79x = 217,265.56 × 89,452.31
  4. Step 4: Simplify right side
    157,444.79x = 19,434,904,915.49
  5. Step 5: Solve for x
    x = 19,434,904,915.49/157,444.79
  6. Step 6: Final answer
    x = 123,439.50

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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.