Home / 231,447.12-319,268.30-134,640.04

Finding the Fourth Proportional to 231,447.12, 319,268.30 and 134,640.04

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Solution

The fourth proportional to 231,447.12, 319,268.30 and 134,640.04 is: 185,728.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,447.12 : 319,268.30 = 134,640.04 : x
  2. Step 2: Convert to fraction form
    231,447.12/319,268.30 = 134,640.04/x
  3. Step 3: Cross multiply
    231,447.12x = 319,268.30 × 134,640.04
  4. Step 4: Simplify right side
    231,447.12x = 42,986,296,682.73
  5. Step 5: Solve for x
    x = 42,986,296,682.73/231,447.12
  6. Step 6: Final answer
    x = 185,728.37

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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.