Home / 268,375.40-402,562.84-68,695.47

Finding the Fourth Proportional to 268,375.40, 402,562.84 and 68,695.47

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Solution

The fourth proportional to 268,375.40, 402,562.84 and 68,695.47 is: 103,043.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,375.40 : 402,562.84 = 68,695.47 : x
  2. Step 2: Convert to fraction form
    268,375.40/402,562.84 = 68,695.47/x
  3. Step 3: Cross multiply
    268,375.40x = 402,562.84 × 68,695.47
  4. Step 4: Simplify right side
    268,375.40x = 27,654,243,498.33
  5. Step 5: Solve for x
    x = 27,654,243,498.33/268,375.40
  6. Step 6: Final answer
    x = 103,043.14

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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.