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Finding the Fourth Proportional to 379,515.15, 569,366.16 and 267,414.30

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Solution

The fourth proportional to 379,515.15, 569,366.16 and 267,414.30 is: 401,187.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,515.15 : 569,366.16 = 267,414.30 : x
  2. Step 2: Convert to fraction form
    379,515.15/569,366.16 = 267,414.30/x
  3. Step 3: Cross multiply
    379,515.15x = 569,366.16 × 267,414.30
  4. Step 4: Simplify right side
    379,515.15x = 152,256,653,120.09
  5. Step 5: Solve for x
    x = 152,256,653,120.09/379,515.15
  6. Step 6: Final answer
    x = 401,187.29

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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.