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Finding the Fourth Proportional to 363,373.20, 545,059.80 and 223,405.20

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Solution

The fourth proportional to 363,373.20, 545,059.80 and 223,405.20 is: 335,107.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,373.20 : 545,059.80 = 223,405.20 : x
  2. Step 2: Convert to fraction form
    363,373.20/545,059.80 = 223,405.20/x
  3. Step 3: Cross multiply
    363,373.20x = 545,059.80 × 223,405.20
  4. Step 4: Simplify right side
    363,373.20x = 121,769,193,630.96
  5. Step 5: Solve for x
    x = 121,769,193,630.96/363,373.20
  6. Step 6: Final answer
    x = 335,107.80

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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.