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Finding the Fourth Proportional to 363,500.50, 545,300.43 and 126,807.70

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Solution

The fourth proportional to 363,500.50, 545,300.43 and 126,807.70 is: 190,228.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,500.50 : 545,300.43 = 126,807.70 : x
  2. Step 2: Convert to fraction form
    363,500.50/545,300.43 = 126,807.70/x
  3. Step 3: Cross multiply
    363,500.50x = 545,300.43 × 126,807.70
  4. Step 4: Simplify right side
    363,500.50x = 69,148,293,337.31
  5. Step 5: Solve for x
    x = 69,148,293,337.31/363,500.50
  6. Step 6: Final answer
    x = 190,228.88

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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.