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Finding the Fourth Proportional to 284,700.81, 392,875.17 and 168,489.60

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Solution

The fourth proportional to 284,700.81, 392,875.17 and 168,489.60 is: 232,508.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,700.81 : 392,875.17 = 168,489.60 : x
  2. Step 2: Convert to fraction form
    284,700.81/392,875.17 = 168,489.60/x
  3. Step 3: Cross multiply
    284,700.81x = 392,875.17 × 168,489.60
  4. Step 4: Simplify right side
    284,700.81x = 66,195,380,243.23
  5. Step 5: Solve for x
    x = 66,195,380,243.23/284,700.81
  6. Step 6: Final answer
    x = 232,508.58

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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.