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Finding the Fourth Proportional to 453,024.80, 679,537.20 and 137,481.20

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Solution

The fourth proportional to 453,024.80, 679,537.20 and 137,481.20 is: 206,221.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,024.80 : 679,537.20 = 137,481.20 : x
  2. Step 2: Convert to fraction form
    453,024.80/679,537.20 = 137,481.20/x
  3. Step 3: Cross multiply
    453,024.80x = 679,537.20 × 137,481.20
  4. Step 4: Simplify right side
    453,024.80x = 93,423,589,700.64
  5. Step 5: Solve for x
    x = 93,423,589,700.64/453,024.80
  6. Step 6: Final answer
    x = 206,221.80

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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.