Home / 259,540.22-389,302.12-109,739.84

Finding the Fourth Proportional to 259,540.22, 389,302.12 and 109,739.84

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Solution

The fourth proportional to 259,540.22, 389,302.12 and 109,739.84 is: 164,606.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,540.22 : 389,302.12 = 109,739.84 : x
  2. Step 2: Convert to fraction form
    259,540.22/389,302.12 = 109,739.84/x
  3. Step 3: Cross multiply
    259,540.22x = 389,302.12 × 109,739.84
  4. Step 4: Simplify right side
    259,540.22x = 42,721,952,360.46
  5. Step 5: Solve for x
    x = 42,721,952,360.46/259,540.22
  6. Step 6: Final answer
    x = 164,606.29

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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.