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Finding the Fourth Proportional to 485,363.88, 728,374.04 and 169,823.52

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Solution

The fourth proportional to 485,363.88, 728,374.04 and 169,823.52 is: 254,850.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,363.88 : 728,374.04 = 169,823.52 : x
  2. Step 2: Convert to fraction form
    485,363.88/728,374.04 = 169,823.52/x
  3. Step 3: Cross multiply
    485,363.88x = 728,374.04 × 169,823.52
  4. Step 4: Simplify right side
    485,363.88x = 123,695,043,349.42
  5. Step 5: Solve for x
    x = 123,695,043,349.42/485,363.88
  6. Step 6: Final answer
    x = 254,850.12

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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.