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Finding the Fourth Proportional to 363,562, 545,345.70 and 126,904.90

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Solution

The fourth proportional to 363,562, 545,345.70 and 126,904.90 is: 190,358.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,562 : 545,345.70 = 126,904.90 : x
  2. Step 2: Convert to fraction form
    363,562/545,345.70 = 126,904.90/x
  3. Step 3: Cross multiply
    363,562x = 545,345.70 × 126,904.90
  4. Step 4: Simplify right side
    363,562x = 69,207,041,523.93
  5. Step 5: Solve for x
    x = 69,207,041,523.93/363,562
  6. Step 6: Final answer
    x = 190,358.29

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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.