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Finding the Fourth Proportional to 250,175.97, 375,284.61 and 81,692.55

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Solution

The fourth proportional to 250,175.97, 375,284.61 and 81,692.55 is: 122,545.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,175.97 : 375,284.61 = 81,692.55 : x
  2. Step 2: Convert to fraction form
    250,175.97/375,284.61 = 81,692.55/x
  3. Step 3: Cross multiply
    250,175.97x = 375,284.61 × 81,692.55
  4. Step 4: Simplify right side
    250,175.97x = 30,657,956,766.66
  5. Step 5: Solve for x
    x = 30,657,956,766.66/250,175.97
  6. Step 6: Final answer
    x = 122,545.57

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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.