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Finding the Fourth Proportional to 379,515.65, 569,366.91 and 267,414.80

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Solution

The fourth proportional to 379,515.65, 569,366.91 and 267,414.80 is: 401,188.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,515.65 : 569,366.91 = 267,414.80 : x
  2. Step 2: Convert to fraction form
    379,515.65/569,366.91 = 267,414.80/x
  3. Step 3: Cross multiply
    379,515.65x = 569,366.91 × 267,414.80
  4. Step 4: Simplify right side
    379,515.65x = 152,257,138,364.27
  5. Step 5: Solve for x
    x = 152,257,138,364.27/379,515.65
  6. Step 6: Final answer
    x = 401,188.04

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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.