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Finding the Fourth Proportional to 144,805.20, 217,402.20 and 92,446.80

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Solution

The fourth proportional to 144,805.20, 217,402.20 and 92,446.80 is: 138,794.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,805.20 : 217,402.20 = 92,446.80 : x
  2. Step 2: Convert to fraction form
    144,805.20/217,402.20 = 92,446.80/x
  3. Step 3: Cross multiply
    144,805.20x = 217,402.20 × 92,446.80
  4. Step 4: Simplify right side
    144,805.20x = 20,098,137,702.96
  5. Step 5: Solve for x
    x = 20,098,137,702.96/144,805.20
  6. Step 6: Final answer
    x = 138,794.31

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1.5x scale

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.