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Finding the Fourth Proportional to 534,342.20, 800,832.90 and 218,442.20

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Solution

The fourth proportional to 534,342.20, 800,832.90 and 218,442.20 is: 327,385.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,342.20 : 800,832.90 = 218,442.20 : x
  2. Step 2: Convert to fraction form
    534,342.20/800,832.90 = 218,442.20/x
  3. Step 3: Cross multiply
    534,342.20x = 800,832.90 × 218,442.20
  4. Step 4: Simplify right side
    534,342.20x = 174,935,700,508.38
  5. Step 5: Solve for x
    x = 174,935,700,508.38/534,342.20
  6. Step 6: Final answer
    x = 327,385.15

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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.