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Finding the Fourth Proportional to 439,474.32, 659,153.19 and 123,956.64

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Solution

The fourth proportional to 439,474.32, 659,153.19 and 123,956.64 is: 185,918.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,474.32 : 659,153.19 = 123,956.64 : x
  2. Step 2: Convert to fraction form
    439,474.32/659,153.19 = 123,956.64/x
  3. Step 3: Cross multiply
    439,474.32x = 659,153.19 × 123,956.64
  4. Step 4: Simplify right side
    439,474.32x = 81,706,414,677.68
  5. Step 5: Solve for x
    x = 81,706,414,677.68/439,474.32
  6. Step 6: Final answer
    x = 185,918.52

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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.