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Finding the Fourth Proportional to 439,460.33, 659,253.67 and 135,878.17

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Solution

The fourth proportional to 439,460.33, 659,253.67 and 135,878.17 is: 203,836.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,460.33 : 659,253.67 = 135,878.17 : x
  2. Step 2: Convert to fraction form
    439,460.33/659,253.67 = 135,878.17/x
  3. Step 3: Cross multiply
    439,460.33x = 659,253.67 × 135,878.17
  4. Step 4: Simplify right side
    439,460.33x = 89,578,182,245.38
  5. Step 5: Solve for x
    x = 89,578,182,245.38/439,460.33
  6. Step 6: Final answer
    x = 203,836.79

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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.