Home / 221,657.28-306,001.12-131,040.96

Finding the Fourth Proportional to 221,657.28, 306,001.12 and 131,040.96

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Solution

The fourth proportional to 221,657.28, 306,001.12 and 131,040.96 is: 180,903.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,657.28 : 306,001.12 = 131,040.96 : x
  2. Step 2: Convert to fraction form
    221,657.28/306,001.12 = 131,040.96/x
  3. Step 3: Cross multiply
    221,657.28x = 306,001.12 × 131,040.96
  4. Step 4: Simplify right side
    221,657.28x = 40,098,680,525.88
  5. Step 5: Solve for x
    x = 40,098,680,525.88/221,657.28
  6. Step 6: Final answer
    x = 180,903.96

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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.