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Finding the Fourth Proportional to 268,255.01, 402,380.90 and 68,575.07

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Solution

The fourth proportional to 268,255.01, 402,380.90 and 68,575.07 is: 102,862.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,255.01 : 402,380.90 = 68,575.07 : x
  2. Step 2: Convert to fraction form
    268,255.01/402,380.90 = 68,575.07/x
  3. Step 3: Cross multiply
    268,255.01x = 402,380.90 × 68,575.07
  4. Step 4: Simplify right side
    268,255.01x = 27,593,296,029.38
  5. Step 5: Solve for x
    x = 27,593,296,029.38/268,255.01
  6. Step 6: Final answer
    x = 102,862.19

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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.