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Finding the Fourth Proportional to 225,722.76, 311,490.66 and 123,744.73

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Solution

The fourth proportional to 225,722.76, 311,490.66 and 123,744.73 is: 170,764.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,722.76 : 311,490.66 = 123,744.73 : x
  2. Step 2: Convert to fraction form
    225,722.76/311,490.66 = 123,744.73/x
  3. Step 3: Cross multiply
    225,722.76x = 311,490.66 × 123,744.73
  4. Step 4: Simplify right side
    225,722.76x = 38,545,327,619.22
  5. Step 5: Solve for x
    x = 38,545,327,619.22/225,722.76
  6. Step 6: Final answer
    x = 170,764.03

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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.