Home / 259,982.28-389,987.33-73,008.36

Finding the Fourth Proportional to 259,982.28, 389,987.33 and 73,008.36

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Solution

The fourth proportional to 259,982.28, 389,987.33 and 73,008.36 is: 109,516.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,982.28 : 389,987.33 = 73,008.36 : x
  2. Step 2: Convert to fraction form
    259,982.28/389,987.33 = 73,008.36/x
  3. Step 3: Cross multiply
    259,982.28x = 389,987.33 × 73,008.36
  4. Step 4: Simplify right side
    259,982.28x = 28,472,335,019.04
  5. Step 5: Solve for x
    x = 28,472,335,019.04/259,982.28
  6. Step 6: Final answer
    x = 109,516.44

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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.