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Finding the Fourth Proportional to 303,752.52, 455,458.14 and 126,140.04

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Solution

The fourth proportional to 303,752.52, 455,458.14 and 126,140.04 is: 189,139.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,752.52 : 455,458.14 = 126,140.04 : x
  2. Step 2: Convert to fraction form
    303,752.52/455,458.14 = 126,140.04/x
  3. Step 3: Cross multiply
    303,752.52x = 455,458.14 × 126,140.04
  4. Step 4: Simplify right side
    303,752.52x = 57,451,507,997.93
  5. Step 5: Solve for x
    x = 57,451,507,997.93/303,752.52
  6. Step 6: Final answer
    x = 189,139.20

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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.