Home / 259,726.34-389,540.28-91,207.04

Finding the Fourth Proportional to 259,726.34, 389,540.28 and 91,207.04

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Solution

The fourth proportional to 259,726.34, 389,540.28 and 91,207.04 is: 136,793.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,726.34 : 389,540.28 = 91,207.04 : x
  2. Step 2: Convert to fraction form
    259,726.34/389,540.28 = 91,207.04/x
  3. Step 3: Cross multiply
    259,726.34x = 389,540.28 × 91,207.04
  4. Step 4: Simplify right side
    259,726.34x = 35,528,815,899.57
  5. Step 5: Solve for x
    x = 35,528,815,899.57/259,726.34
  6. Step 6: Final answer
    x = 136,793.27

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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.