Home / 231,205.36-319,097.28-135,764.32

Finding the Fourth Proportional to 231,205.36, 319,097.28 and 135,764.32

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Solution

The fourth proportional to 231,205.36, 319,097.28 and 135,764.32 is: 187,374.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,205.36 : 319,097.28 = 135,764.32 : x
  2. Step 2: Convert to fraction form
    231,205.36/319,097.28 = 135,764.32/x
  3. Step 3: Cross multiply
    231,205.36x = 319,097.28 × 135,764.32
  4. Step 4: Simplify right side
    231,205.36x = 43,322,025,233.05
  5. Step 5: Solve for x
    x = 43,322,025,233.05/231,205.36
  6. Step 6: Final answer
    x = 187,374.66

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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.