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Finding the Fourth Proportional to 268,137.73, 402,206.24 and 68,458.15

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Solution

The fourth proportional to 268,137.73, 402,206.24 and 68,458.15 is: 102,687.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,137.73 : 402,206.24 = 68,458.15 : x
  2. Step 2: Convert to fraction form
    268,137.73/402,206.24 = 68,458.15/x
  3. Step 3: Cross multiply
    268,137.73x = 402,206.24 × 68,458.15
  4. Step 4: Simplify right side
    268,137.73x = 27,534,295,108.86
  5. Step 5: Solve for x
    x = 27,534,295,108.86/268,137.73
  6. Step 6: Final answer
    x = 102,687.13

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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.