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Finding the Fourth Proportional to 284,659.92, 392,830.76 and 157,335.52

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Solution

The fourth proportional to 284,659.92, 392,830.76 and 157,335.52 is: 217,123.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,659.92 : 392,830.76 = 157,335.52 : x
  2. Step 2: Convert to fraction form
    284,659.92/392,830.76 = 157,335.52/x
  3. Step 3: Cross multiply
    284,659.92x = 392,830.76 × 157,335.52
  4. Step 4: Simplify right side
    284,659.92x = 61,806,231,896.60
  5. Step 5: Solve for x
    x = 61,806,231,896.60/284,659.92
  6. Step 6: Final answer
    x = 217,123.06

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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.