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Finding the Fourth Proportional to 485,699.03, 728,549.91 and 170,082.12

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Solution

The fourth proportional to 485,699.03, 728,549.91 and 170,082.12 is: 255,123.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,699.03 : 728,549.91 = 170,082.12 : x
  2. Step 2: Convert to fraction form
    485,699.03/728,549.91 = 170,082.12/x
  3. Step 3: Cross multiply
    485,699.03x = 728,549.91 × 170,082.12
  4. Step 4: Simplify right side
    485,699.03x = 123,913,313,218.61
  5. Step 5: Solve for x
    x = 123,913,313,218.61/485,699.03
  6. Step 6: Final answer
    x = 255,123.66

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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.