Home / 263,835.03-395,837.31-86,301.66

Finding the Fourth Proportional to 263,835.03, 395,837.31 and 86,301.66

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Solution

The fourth proportional to 263,835.03, 395,837.31 and 86,301.66 is: 129,480.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,835.03 : 395,837.31 = 86,301.66 : x
  2. Step 2: Convert to fraction form
    263,835.03/395,837.31 = 86,301.66/x
  3. Step 3: Cross multiply
    263,835.03x = 395,837.31 × 86,301.66
  4. Step 4: Simplify right side
    263,835.03x = 34,161,416,942.93
  5. Step 5: Solve for x
    x = 34,161,416,942.93/263,835.03
  6. Step 6: Final answer
    x = 129,480.22

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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.