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Finding the Fourth Proportional to 499,578.66, 749,377.26 and 162,618.12

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Solution

The fourth proportional to 499,578.66, 749,377.26 and 162,618.12 is: 243,930.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,578.66 : 749,377.26 = 162,618.12 : x
  2. Step 2: Convert to fraction form
    499,578.66/749,377.26 = 162,618.12/x
  3. Step 3: Cross multiply
    499,578.66x = 749,377.26 × 162,618.12
  4. Step 4: Simplify right side
    499,578.66x = 121,862,321,191.95
  5. Step 5: Solve for x
    x = 121,862,321,191.95/499,578.66
  6. Step 6: Final answer
    x = 243,930.20

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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.