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Finding the Fourth Proportional to 392,363.01, 541,423.53 and 220,241.55

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Solution

The fourth proportional to 392,363.01, 541,423.53 and 220,241.55 is: 303,912.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,363.01 : 541,423.53 = 220,241.55 : x
  2. Step 2: Convert to fraction form
    392,363.01/541,423.53 = 220,241.55/x
  3. Step 3: Cross multiply
    392,363.01x = 541,423.53 × 220,241.55
  4. Step 4: Simplify right side
    392,363.01x = 119,243,957,453.67
  5. Step 5: Solve for x
    x = 119,243,957,453.67/392,363.01
  6. Step 6: Final answer
    x = 303,912.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.