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Finding the Fourth Proportional to 363,419.60, 545,129.40 and 185,867.60

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Solution

The fourth proportional to 363,419.60, 545,129.40 and 185,867.60 is: 278,801.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,419.60 : 545,129.40 = 185,867.60 : x
  2. Step 2: Convert to fraction form
    363,419.60/545,129.40 = 185,867.60/x
  3. Step 3: Cross multiply
    363,419.60x = 545,129.40 × 185,867.60
  4. Step 4: Simplify right side
    363,419.60x = 101,321,893,267.44
  5. Step 5: Solve for x
    x = 101,321,893,267.44/363,419.60
  6. Step 6: Final answer
    x = 278,801.40

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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.