Home / 259,930.08-390,040.92-141,609.72

Finding the Fourth Proportional to 259,930.08, 390,040.92 and 141,609.72

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Solution

The fourth proportional to 259,930.08, 390,040.92 and 141,609.72 is: 212,494.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,930.08 : 390,040.92 = 141,609.72 : x
  2. Step 2: Convert to fraction form
    259,930.08/390,040.92 = 141,609.72/x
  3. Step 3: Cross multiply
    259,930.08x = 390,040.92 × 141,609.72
  4. Step 4: Simplify right side
    259,930.08x = 55,233,585,469.74
  5. Step 5: Solve for x
    x = 55,233,585,469.74/259,930.08
  6. Step 6: Final answer
    x = 212,494.01

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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.