Home / 263,711.40-395,618.02-86,170.52

Finding the Fourth Proportional to 263,711.40, 395,618.02 and 86,170.52

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Solution

The fourth proportional to 263,711.40, 395,618.02 and 86,170.52 is: 129,272.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,711.40 : 395,618.02 = 86,170.52 : x
  2. Step 2: Convert to fraction form
    263,711.40/395,618.02 = 86,170.52/x
  3. Step 3: Cross multiply
    263,711.40x = 395,618.02 × 86,170.52
  4. Step 4: Simplify right side
    263,711.40x = 34,090,610,504.77
  5. Step 5: Solve for x
    x = 34,090,610,504.77/263,711.40
  6. Step 6: Final answer
    x = 129,272.42

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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.