Home / 263,742.90-395,614.35-86,207.10

Finding the Fourth Proportional to 263,742.90, 395,614.35 and 86,207.10

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Solution

The fourth proportional to 263,742.90, 395,614.35 and 86,207.10 is: 129,310.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,742.90 : 395,614.35 = 86,207.10 : x
  2. Step 2: Convert to fraction form
    263,742.90/395,614.35 = 86,207.10/x
  3. Step 3: Cross multiply
    263,742.90x = 395,614.35 × 86,207.10
  4. Step 4: Simplify right side
    263,742.90x = 34,104,765,831.89
  5. Step 5: Solve for x
    x = 34,104,765,831.89/263,742.90
  6. Step 6: Final answer
    x = 129,310.65

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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.