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Finding the Fourth Proportional to 482,511.53, 665,945.65 and 267,720.80

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Solution

The fourth proportional to 482,511.53, 665,945.65 and 267,720.80 is: 369,498.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,511.53 : 665,945.65 = 267,720.80 : x
  2. Step 2: Convert to fraction form
    482,511.53/665,945.65 = 267,720.80/x
  3. Step 3: Cross multiply
    482,511.53x = 665,945.65 × 267,720.80
  4. Step 4: Simplify right side
    482,511.53x = 178,287,499,179.44
  5. Step 5: Solve for x
    x = 178,287,499,179.44/482,511.53
  6. Step 6: Final answer
    x = 369,498.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.