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Finding the Fourth Proportional to 268,414.00, 402,610.49 and 90,921.01

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Solution

The fourth proportional to 268,414.00, 402,610.49 and 90,921.01 is: 136,377.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,414.00 : 402,610.49 = 90,921.01 : x
  2. Step 2: Convert to fraction form
    268,414.00/402,610.49 = 90,921.01/x
  3. Step 3: Cross multiply
    268,414.00x = 402,610.49 × 90,921.01
  4. Step 4: Simplify right side
    268,414.00x = 36,605,751,455.94
  5. Step 5: Solve for x
    x = 36,605,751,455.94/268,414.00
  6. Step 6: Final answer
    x = 136,377.95

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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.