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Finding the Fourth Proportional to 218,043.60, 300,902.88 and 132,001.44

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Solution

The fourth proportional to 218,043.60, 300,902.88 and 132,001.44 is: 182,163.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,043.60 : 300,902.88 = 132,001.44 : x
  2. Step 2: Convert to fraction form
    218,043.60/300,902.88 = 132,001.44/x
  3. Step 3: Cross multiply
    218,043.60x = 300,902.88 × 132,001.44
  4. Step 4: Simplify right side
    218,043.60x = 39,719,613,460.15
  5. Step 5: Solve for x
    x = 39,719,613,460.15/218,043.60
  6. Step 6: Final answer
    x = 182,163.63

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1.5x scale

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.