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Finding the Fourth Proportional to 539,748.20, 809,622.30 and 165,770.60

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Solution

The fourth proportional to 539,748.20, 809,622.30 and 165,770.60 is: 248,655.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,748.20 : 809,622.30 = 165,770.60 : x
  2. Step 2: Convert to fraction form
    539,748.20/809,622.30 = 165,770.60/x
  3. Step 3: Cross multiply
    539,748.20x = 809,622.30 × 165,770.60
  4. Step 4: Simplify right side
    539,748.20x = 134,211,574,444.38
  5. Step 5: Solve for x
    x = 134,211,574,444.38/539,748.20
  6. Step 6: Final answer
    x = 248,655.90

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Similar ratio
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1.5x scale

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.