Home / 259,682.10-389,304.45-135,023.10

Finding the Fourth Proportional to 259,682.10, 389,304.45 and 135,023.10

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Solution

The fourth proportional to 259,682.10, 389,304.45 and 135,023.10 is: 202,420.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,682.10 : 389,304.45 = 135,023.10 : x
  2. Step 2: Convert to fraction form
    259,682.10/389,304.45 = 135,023.10/x
  3. Step 3: Cross multiply
    259,682.10x = 389,304.45 × 135,023.10
  4. Step 4: Simplify right side
    259,682.10x = 52,565,093,682.80
  5. Step 5: Solve for x
    x = 52,565,093,682.80/259,682.10
  6. Step 6: Final answer
    x = 202,420.94

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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.