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Finding the Fourth Proportional to 252,807.87, 348,876.66 and 139,630.62

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Solution

The fourth proportional to 252,807.87, 348,876.66 and 139,630.62 is: 192,691.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,807.87 : 348,876.66 = 139,630.62 : x
  2. Step 2: Convert to fraction form
    252,807.87/348,876.66 = 139,630.62/x
  3. Step 3: Cross multiply
    252,807.87x = 348,876.66 × 139,630.62
  4. Step 4: Simplify right side
    252,807.87x = 48,713,862,594.95
  5. Step 5: Solve for x
    x = 48,713,862,594.95/252,807.87
  6. Step 6: Final answer
    x = 192,691.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.