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Finding the Fourth Proportional to 250,266.85, 375,436.88 and 72,750.80

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Solution

The fourth proportional to 250,266.85, 375,436.88 and 72,750.80 is: 109,136.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,266.85 : 375,436.88 = 72,750.80 : x
  2. Step 2: Convert to fraction form
    250,266.85/375,436.88 = 72,750.80/x
  3. Step 3: Cross multiply
    250,266.85x = 375,436.88 × 72,750.80
  4. Step 4: Simplify right side
    250,266.85x = 27,313,331,401.38
  5. Step 5: Solve for x
    x = 27,313,331,401.38/250,266.85
  6. Step 6: Final answer
    x = 109,136.83

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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.