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Finding the Fourth Proportional to 382,472.40, 572,542.20 and 224,230.80

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Solution

The fourth proportional to 382,472.40, 572,542.20 and 224,230.80 is: 335,662.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,472.40 : 572,542.20 = 224,230.80 : x
  2. Step 2: Convert to fraction form
    382,472.40/572,542.20 = 224,230.80/x
  3. Step 3: Cross multiply
    382,472.40x = 572,542.20 × 224,230.80
  4. Step 4: Simplify right side
    382,472.40x = 128,381,595,539.76
  5. Step 5: Solve for x
    x = 128,381,595,539.76/382,472.40
  6. Step 6: Final answer
    x = 335,662.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.