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Finding the Fourth Proportional to 268,104.24, 402,156 and 68,424.60

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Solution

The fourth proportional to 268,104.24, 402,156 and 68,424.60 is: 102,636.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,104.24 : 402,156 = 68,424.60 : x
  2. Step 2: Convert to fraction form
    268,104.24/402,156 = 68,424.60/x
  3. Step 3: Cross multiply
    268,104.24x = 402,156 × 68,424.60
  4. Step 4: Simplify right side
    268,104.24x = 27,517,363,437.60
  5. Step 5: Solve for x
    x = 27,517,363,437.60/268,104.24
  6. Step 6: Final answer
    x = 102,636.81

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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.