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Finding the Fourth Proportional to 363,531.60, 545,297.40 and 185,979.60

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Solution

The fourth proportional to 363,531.60, 545,297.40 and 185,979.60 is: 278,969.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,531.60 : 545,297.40 = 185,979.60 : x
  2. Step 2: Convert to fraction form
    363,531.60/545,297.40 = 185,979.60/x
  3. Step 3: Cross multiply
    363,531.60x = 545,297.40 × 185,979.60
  4. Step 4: Simplify right side
    363,531.60x = 101,414,192,333.04
  5. Step 5: Solve for x
    x = 101,414,192,333.04/363,531.60
  6. Step 6: Final answer
    x = 278,969.40

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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.