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Finding the Fourth Proportional to 542,562.20, 813,920.10 and 168,546.20

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Solution

The fourth proportional to 542,562.20, 813,920.10 and 168,546.20 is: 252,843.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,562.20 : 813,920.10 = 168,546.20 : x
  2. Step 2: Convert to fraction form
    542,562.20/813,920.10 = 168,546.20/x
  3. Step 3: Cross multiply
    542,562.20x = 813,920.10 × 168,546.20
  4. Step 4: Simplify right side
    542,562.20x = 137,183,139,958.62
  5. Step 5: Solve for x
    x = 137,183,139,958.62/542,562.20
  6. Step 6: Final answer
    x = 252,843.16

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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.