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Finding the Fourth Proportional to 322,457.28, 443,974.59 and 292,563.71

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Solution

The fourth proportional to 322,457.28, 443,974.59 and 292,563.71 is: 402,815.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,457.28 : 443,974.59 = 292,563.71 : x
  2. Step 2: Convert to fraction form
    322,457.28/443,974.59 = 292,563.71/x
  3. Step 3: Cross multiply
    322,457.28x = 443,974.59 × 292,563.71
  4. Step 4: Simplify right side
    322,457.28x = 129,890,853,196.13
  5. Step 5: Solve for x
    x = 129,890,853,196.13/322,457.28
  6. Step 6: Final answer
    x = 402,815.69

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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.