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Finding the Fourth Proportional to 225,999.68, 311,995.68 and 159,229.76

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Solution

The fourth proportional to 225,999.68, 311,995.68 and 159,229.76 is: 219,818.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,999.68 : 311,995.68 = 159,229.76 : x
  2. Step 2: Convert to fraction form
    225,999.68/311,995.68 = 159,229.76/x
  3. Step 3: Cross multiply
    225,999.68x = 311,995.68 × 159,229.76
  4. Step 4: Simplify right side
    225,999.68x = 49,678,997,247.44
  5. Step 5: Solve for x
    x = 49,678,997,247.44/225,999.68
  6. Step 6: Final answer
    x = 219,818.88

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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.