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Finding the Fourth Proportional to 363,530, 545,344.68 and 126,837.92

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Solution

The fourth proportional to 363,530, 545,344.68 and 126,837.92 is: 190,274.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,530 : 545,344.68 = 126,837.92 : x
  2. Step 2: Convert to fraction form
    363,530/545,344.68 = 126,837.92/x
  3. Step 3: Cross multiply
    363,530x = 545,344.68 × 126,837.92
  4. Step 4: Simplify right side
    363,530x = 69,170,384,894.27
  5. Step 5: Solve for x
    x = 69,170,384,894.27/363,530
  6. Step 6: Final answer
    x = 190,274.21

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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.