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Finding the Fourth Proportional to 323,475.66, 485,242.65 and 123,787.98

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Solution

The fourth proportional to 323,475.66, 485,242.65 and 123,787.98 is: 185,693.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,475.66 : 485,242.65 = 123,787.98 : x
  2. Step 2: Convert to fraction form
    323,475.66/485,242.65 = 123,787.98/x
  3. Step 3: Cross multiply
    323,475.66x = 485,242.65 × 123,787.98
  4. Step 4: Simplify right side
    323,475.66x = 60,067,207,453.35
  5. Step 5: Solve for x
    x = 60,067,207,453.35/323,475.66
  6. Step 6: Final answer
    x = 185,693.13

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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.