Home / 221,873.38-306,151.05-126,367.90

Finding the Fourth Proportional to 221,873.38, 306,151.05 and 126,367.90

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Solution

The fourth proportional to 221,873.38, 306,151.05 and 126,367.90 is: 174,368.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,873.38 : 306,151.05 = 126,367.90 : x
  2. Step 2: Convert to fraction form
    221,873.38/306,151.05 = 126,367.90/x
  3. Step 3: Cross multiply
    221,873.38x = 306,151.05 × 126,367.90
  4. Step 4: Simplify right side
    221,873.38x = 38,687,665,271.30
  5. Step 5: Solve for x
    x = 38,687,665,271.30/221,873.38
  6. Step 6: Final answer
    x = 174,368.22

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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.