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Finding the Fourth Proportional to 169,691.60, 254,537.40 and 130,446.80

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Solution

The fourth proportional to 169,691.60, 254,537.40 and 130,446.80 is: 195,670.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,691.60 : 254,537.40 = 130,446.80 : x
  2. Step 2: Convert to fraction form
    169,691.60/254,537.40 = 130,446.80/x
  3. Step 3: Cross multiply
    169,691.60x = 254,537.40 × 130,446.80
  4. Step 4: Simplify right side
    169,691.60x = 33,203,589,310.32
  5. Step 5: Solve for x
    x = 33,203,589,310.32/169,691.60
  6. Step 6: Final answer
    x = 195,670.20

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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.