Home / 319,268.13-479,016.69-136,822.38

Finding the Fourth Proportional to 319,268.13, 479,016.69 and 136,822.38

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Solution

The fourth proportional to 319,268.13, 479,016.69 and 136,822.38 is: 205,282.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,268.13 : 479,016.69 = 136,822.38 : x
  2. Step 2: Convert to fraction form
    319,268.13/479,016.69 = 136,822.38/x
  3. Step 3: Cross multiply
    319,268.13x = 479,016.69 × 136,822.38
  4. Step 4: Simplify right side
    319,268.13x = 65,540,203,585.52
  5. Step 5: Solve for x
    x = 65,540,203,585.52/319,268.13
  6. Step 6: Final answer
    x = 205,282.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.