Home / 415,841.52-623,839.14-131,603.70

Finding the Fourth Proportional to 415,841.52, 623,839.14 and 131,603.70

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Solution

The fourth proportional to 415,841.52, 623,839.14 and 131,603.70 is: 197,429.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,841.52 : 623,839.14 = 131,603.70 : x
  2. Step 2: Convert to fraction form
    415,841.52/623,839.14 = 131,603.70/x
  3. Step 3: Cross multiply
    415,841.52x = 623,839.14 × 131,603.70
  4. Step 4: Simplify right side
    415,841.52x = 82,099,539,028.82
  5. Step 5: Solve for x
    x = 82,099,539,028.82/415,841.52
  6. Step 6: Final answer
    x = 197,429.87

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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.