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Finding the Fourth Proportional to 363,800.80, 545,701.20 and 347,471.20

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Solution

The fourth proportional to 363,800.80, 545,701.20 and 347,471.20 is: 521,206.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,800.80 : 545,701.20 = 347,471.20 : x
  2. Step 2: Convert to fraction form
    363,800.80/545,701.20 = 347,471.20/x
  3. Step 3: Cross multiply
    363,800.80x = 545,701.20 × 347,471.20
  4. Step 4: Simplify right side
    363,800.80x = 189,615,450,805.44
  5. Step 5: Solve for x
    x = 189,615,450,805.44/363,800.80
  6. Step 6: Final answer
    x = 521,206.80

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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.