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Finding the Fourth Proportional to 542,408.18, 813,423.56 and 222,469.20

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Solution

The fourth proportional to 542,408.18, 813,423.56 and 222,469.20 is: 333,626.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,408.18 : 813,423.56 = 222,469.20 : x
  2. Step 2: Convert to fraction form
    542,408.18/813,423.56 = 222,469.20/x
  3. Step 3: Cross multiply
    542,408.18x = 813,423.56 × 222,469.20
  4. Step 4: Simplify right side
    542,408.18x = 180,961,687,542.01
  5. Step 5: Solve for x
    x = 180,961,687,542.01/542,408.18
  6. Step 6: Final answer
    x = 333,626.40

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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.