Home / 328,742.54-493,335.24-129,039.27

Finding the Fourth Proportional to 328,742.54, 493,335.24 and 129,039.27

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Solution

The fourth proportional to 328,742.54, 493,335.24 and 129,039.27 is: 193,645.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,742.54 : 493,335.24 = 129,039.27 : x
  2. Step 2: Convert to fraction form
    328,742.54/493,335.24 = 129,039.27/x
  3. Step 3: Cross multiply
    328,742.54x = 493,335.24 × 129,039.27
  4. Step 4: Simplify right side
    328,742.54x = 63,659,619,234.87
  5. Step 5: Solve for x
    x = 63,659,619,234.87/328,742.54
  6. Step 6: Final answer
    x = 193,645.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.