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Finding the Fourth Proportional to 225,463.60, 311,139.64 and 124,861.52

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Solution

The fourth proportional to 225,463.60, 311,139.64 and 124,861.52 is: 172,308.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,463.60 : 311,139.64 = 124,861.52 : x
  2. Step 2: Convert to fraction form
    225,463.60/311,139.64 = 124,861.52/x
  3. Step 3: Cross multiply
    225,463.60x = 311,139.64 × 124,861.52
  4. Step 4: Simplify right side
    225,463.60x = 38,849,368,382.65
  5. Step 5: Solve for x
    x = 38,849,368,382.65/225,463.60
  6. Step 6: Final answer
    x = 172,308.83

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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.