Home / 240,791.12-332,288.39-138,816.78

Finding the Fourth Proportional to 240,791.12, 332,288.39 and 138,816.78

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Solution

The fourth proportional to 240,791.12, 332,288.39 and 138,816.78 is: 191,565.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,791.12 : 332,288.39 = 138,816.78 : x
  2. Step 2: Convert to fraction form
    240,791.12/332,288.39 = 138,816.78/x
  3. Step 3: Cross multiply
    240,791.12x = 332,288.39 × 138,816.78
  4. Step 4: Simplify right side
    240,791.12x = 46,127,204,331.18
  5. Step 5: Solve for x
    x = 46,127,204,331.18/240,791.12
  6. Step 6: Final answer
    x = 191,565.22

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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.