Home / 240,255.24-331,585.14-138,278.58

Finding the Fourth Proportional to 240,255.24, 331,585.14 and 138,278.58

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Solution

The fourth proportional to 240,255.24, 331,585.14 and 138,278.58 is: 190,843.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,255.24 : 331,585.14 = 138,278.58 : x
  2. Step 2: Convert to fraction form
    240,255.24/331,585.14 = 138,278.58/x
  3. Step 3: Cross multiply
    240,255.24x = 331,585.14 × 138,278.58
  4. Step 4: Simplify right side
    240,255.24x = 45,851,122,308.30
  5. Step 5: Solve for x
    x = 45,851,122,308.30/240,255.24
  6. Step 6: Final answer
    x = 190,843.38

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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.