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Finding the Fourth Proportional to 223,247.68, 308,081.44 and 122,645.76

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Solution

The fourth proportional to 223,247.68, 308,081.44 and 122,645.76 is: 169,250.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,247.68 : 308,081.44 = 122,645.76 : x
  2. Step 2: Convert to fraction form
    223,247.68/308,081.44 = 122,645.76/x
  3. Step 3: Cross multiply
    223,247.68x = 308,081.44 × 122,645.76
  4. Step 4: Simplify right side
    223,247.68x = 37,784,882,350.69
  5. Step 5: Solve for x
    x = 37,784,882,350.69/223,247.68
  6. Step 6: Final answer
    x = 169,250.95

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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.