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Finding the Fourth Proportional to 239,993.28, 331,037.28 and 144,529.92

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Solution

The fourth proportional to 239,993.28, 331,037.28 and 144,529.92 is: 199,358.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,993.28 : 331,037.28 = 144,529.92 : x
  2. Step 2: Convert to fraction form
    239,993.28/331,037.28 = 144,529.92/x
  3. Step 3: Cross multiply
    239,993.28x = 331,037.28 × 144,529.92
  4. Step 4: Simplify right side
    239,993.28x = 47,844,791,595.42
  5. Step 5: Solve for x
    x = 47,844,791,595.42/239,993.28
  6. Step 6: Final answer
    x = 199,358.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.