Home / 207,231.28-310,861.26-80,829.50

Finding the Fourth Proportional to 207,231.28, 310,861.26 and 80,829.50

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Solution

The fourth proportional to 207,231.28, 310,861.26 and 80,829.50 is: 121,249.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,231.28 : 310,861.26 = 80,829.50 : x
  2. Step 2: Convert to fraction form
    207,231.28/310,861.26 = 80,829.50/x
  3. Step 3: Cross multiply
    207,231.28x = 310,861.26 × 80,829.50
  4. Step 4: Simplify right side
    207,231.28x = 25,126,758,660.86
  5. Step 5: Solve for x
    x = 25,126,758,660.86/207,231.28
  6. Step 6: Final answer
    x = 121,249.84

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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.