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Finding the Fourth Proportional to 322,456.28, 443,973.22 and 292,562.71

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Solution

The fourth proportional to 322,456.28, 443,973.22 and 292,562.71 is: 402,814.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,456.28 : 443,973.22 = 292,562.71 : x
  2. Step 2: Convert to fraction form
    322,456.28/443,973.22 = 292,562.71/x
  3. Step 3: Cross multiply
    322,456.28x = 443,973.22 × 292,562.71
  4. Step 4: Simplify right side
    322,456.28x = 129,890,006,569.29
  5. Step 5: Solve for x
    x = 129,890,006,569.29/322,456.28
  6. Step 6: Final answer
    x = 402,814.32

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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.