Home / 239,877.49-331,028.77-132,445.20

Finding the Fourth Proportional to 239,877.49, 331,028.77 and 132,445.20

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Solution

The fourth proportional to 239,877.49, 331,028.77 and 132,445.20 is: 182,773.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,877.49 : 331,028.77 = 132,445.20 : x
  2. Step 2: Convert to fraction form
    239,877.49/331,028.77 = 132,445.20/x
  3. Step 3: Cross multiply
    239,877.49x = 331,028.77 × 132,445.20
  4. Step 4: Simplify right side
    239,877.49x = 43,843,171,648.40
  5. Step 5: Solve for x
    x = 43,843,171,648.40/239,877.49
  6. Step 6: Final answer
    x = 182,773.18

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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.