Home / 239,791.80-359,979.30-121,402.20

Finding the Fourth Proportional to 239,791.80, 359,979.30 and 121,402.20

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Solution

The fourth proportional to 239,791.80, 359,979.30 and 121,402.20 is: 182,250.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,791.80 : 359,979.30 = 121,402.20 : x
  2. Step 2: Convert to fraction form
    239,791.80/359,979.30 = 121,402.20/x
  3. Step 3: Cross multiply
    239,791.80x = 359,979.30 × 121,402.20
  4. Step 4: Simplify right side
    239,791.80x = 43,702,278,974.46
  5. Step 5: Solve for x
    x = 43,702,278,974.46/239,791.80
  6. Step 6: Final answer
    x = 182,250.93

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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.