Home / 216,067.20-323,825.40-121,297.20

Finding the Fourth Proportional to 216,067.20, 323,825.40 and 121,297.20

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Solution

The fourth proportional to 216,067.20, 323,825.40 and 121,297.20 is: 181,791.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,067.20 : 323,825.40 = 121,297.20 : x
  2. Step 2: Convert to fraction form
    216,067.20/323,825.40 = 121,297.20/x
  3. Step 3: Cross multiply
    216,067.20x = 323,825.40 × 121,297.20
  4. Step 4: Simplify right side
    216,067.20x = 39,279,114,308.88
  5. Step 5: Solve for x
    x = 39,279,114,308.88/216,067.20
  6. Step 6: Final answer
    x = 181,791.19

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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.