Home / 260,067.75-390,214.31-91,708.34

Finding the Fourth Proportional to 260,067.75, 390,214.31 and 91,708.34

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Solution

The fourth proportional to 260,067.75, 390,214.31 and 91,708.34 is: 137,602.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,067.75 : 390,214.31 = 91,708.34 : x
  2. Step 2: Convert to fraction form
    260,067.75/390,214.31 = 91,708.34/x
  3. Step 3: Cross multiply
    260,067.75x = 390,214.31 × 91,708.34
  4. Step 4: Simplify right side
    260,067.75x = 35,785,904,204.73
  5. Step 5: Solve for x
    x = 35,785,904,204.73/260,067.75
  6. Step 6: Final answer
    x = 137,602.24

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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.