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Finding the Fourth Proportional to 539,770.60, 809,655.90 and 165,793.60

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Solution

The fourth proportional to 539,770.60, 809,655.90 and 165,793.60 is: 248,690.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,770.60 : 809,655.90 = 165,793.60 : x
  2. Step 2: Convert to fraction form
    539,770.60/809,655.90 = 165,793.60/x
  3. Step 3: Cross multiply
    539,770.60x = 809,655.90 × 165,793.60
  4. Step 4: Simplify right side
    539,770.60x = 134,235,766,422.24
  5. Step 5: Solve for x
    x = 134,235,766,422.24/539,770.60
  6. Step 6: Final answer
    x = 248,690.40

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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.