Home / 220,645.27-331,079.68-100,688.93

Finding the Fourth Proportional to 220,645.27, 331,079.68 and 100,688.93

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Solution

The fourth proportional to 220,645.27, 331,079.68 and 100,688.93 is: 151,084.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,645.27 : 331,079.68 = 100,688.93 : x
  2. Step 2: Convert to fraction form
    220,645.27/331,079.68 = 100,688.93/x
  3. Step 3: Cross multiply
    220,645.27x = 331,079.68 × 100,688.93
  4. Step 4: Simplify right side
    220,645.27x = 33,336,058,723.94
  5. Step 5: Solve for x
    x = 33,336,058,723.94/220,645.27
  6. Step 6: Final answer
    x = 151,084.40

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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.