Home / 221,974.44-306,330.18-121,379.88

Finding the Fourth Proportional to 221,974.44, 306,330.18 and 121,379.88

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Solution

The fourth proportional to 221,974.44, 306,330.18 and 121,379.88 is: 167,507.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,974.44 : 306,330.18 = 121,379.88 : x
  2. Step 2: Convert to fraction form
    221,974.44/306,330.18 = 121,379.88/x
  3. Step 3: Cross multiply
    221,974.44x = 306,330.18 × 121,379.88
  4. Step 4: Simplify right side
    221,974.44x = 37,182,320,488.78
  5. Step 5: Solve for x
    x = 37,182,320,488.78/221,974.44
  6. Step 6: Final answer
    x = 167,507.22

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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.