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Finding the Fourth Proportional to 303,753.52, 455,459.64 and 126,141.04

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Solution

The fourth proportional to 303,753.52, 455,459.64 and 126,141.04 is: 189,140.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,753.52 : 455,459.64 = 126,141.04 : x
  2. Step 2: Convert to fraction form
    303,753.52/455,459.64 = 126,141.04/x
  3. Step 3: Cross multiply
    303,753.52x = 455,459.64 × 126,141.04
  4. Step 4: Simplify right side
    303,753.52x = 57,452,152,667.63
  5. Step 5: Solve for x
    x = 57,452,152,667.63/303,753.52
  6. Step 6: Final answer
    x = 189,140.70

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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.