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Finding the Fourth Proportional to 485,702.34, 670,269.88 and 267,906.13

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Solution

The fourth proportional to 485,702.34, 670,269.88 and 267,906.13 is: 369,710.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,702.34 : 670,269.88 = 267,906.13 : x
  2. Step 2: Convert to fraction form
    485,702.34/670,269.88 = 267,906.13/x
  3. Step 3: Cross multiply
    485,702.34x = 670,269.88 × 267,906.13
  4. Step 4: Simplify right side
    485,702.34x = 179,569,411,847.47
  5. Step 5: Solve for x
    x = 179,569,411,847.47/485,702.34
  6. Step 6: Final answer
    x = 369,710.82

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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.