Home / 225,728.17-311,508.38-123,762.94

Finding the Fourth Proportional to 225,728.17, 311,508.38 and 123,762.94

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Solution

The fourth proportional to 225,728.17, 311,508.38 and 123,762.94 is: 170,794.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,728.17 : 311,508.38 = 123,762.94 : x
  2. Step 2: Convert to fraction form
    225,728.17/311,508.38 = 123,762.94/x
  3. Step 3: Cross multiply
    225,728.17x = 311,508.38 × 123,762.94
  4. Step 4: Simplify right side
    225,728.17x = 38,553,192,474.07
  5. Step 5: Solve for x
    x = 38,553,192,474.07/225,728.17
  6. Step 6: Final answer
    x = 170,794.78

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1.5x scale

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.