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Finding the Fourth Proportional to 347,002.20, 520,517.70 and 110,338.20

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Solution

The fourth proportional to 347,002.20, 520,517.70 and 110,338.20 is: 165,511.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,002.20 : 520,517.70 = 110,338.20 : x
  2. Step 2: Convert to fraction form
    347,002.20/520,517.70 = 110,338.20/x
  3. Step 3: Cross multiply
    347,002.20x = 520,517.70 × 110,338.20
  4. Step 4: Simplify right side
    347,002.20x = 57,432,986,086.14
  5. Step 5: Solve for x
    x = 57,432,986,086.14/347,002.20
  6. Step 6: Final answer
    x = 165,511.88

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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.