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Finding the Fourth Proportional to 252,761.64, 348,808.26 and 139,582.12

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Solution

The fourth proportional to 252,761.64, 348,808.26 and 139,582.12 is: 192,621.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,761.64 : 348,808.26 = 139,582.12 : x
  2. Step 2: Convert to fraction form
    252,761.64/348,808.26 = 139,582.12/x
  3. Step 3: Cross multiply
    252,761.64x = 348,808.26 × 139,582.12
  4. Step 4: Simplify right side
    252,761.64x = 48,687,396,404.31
  5. Step 5: Solve for x
    x = 48,687,396,404.31/252,761.64
  6. Step 6: Final answer
    x = 192,621.78

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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.