Home / 240,612.73-331,964.22-138,635.55

Finding the Fourth Proportional to 240,612.73, 331,964.22 and 138,635.55

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Solution

The fourth proportional to 240,612.73, 331,964.22 and 138,635.55 is: 191,270.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,612.73 : 331,964.22 = 138,635.55 : x
  2. Step 2: Convert to fraction form
    240,612.73/331,964.22 = 138,635.55/x
  3. Step 3: Cross multiply
    240,612.73x = 331,964.22 × 138,635.55
  4. Step 4: Simplify right side
    240,612.73x = 46,022,042,739.90
  5. Step 5: Solve for x
    x = 46,022,042,739.90/240,612.73
  6. Step 6: Final answer
    x = 191,270.19

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1.5x scale

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.