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Finding the Fourth Proportional to 268,171.49, 402,256.83 and 68,491.82

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Solution

The fourth proportional to 268,171.49, 402,256.83 and 68,491.82 is: 102,737.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,171.49 : 402,256.83 = 68,491.82 : x
  2. Step 2: Convert to fraction form
    268,171.49/402,256.83 = 68,491.82/x
  3. Step 3: Cross multiply
    268,171.49x = 402,256.83 × 68,491.82
  4. Step 4: Simplify right side
    268,171.49x = 27,551,302,394.13
  5. Step 5: Solve for x
    x = 27,551,302,394.13/268,171.49
  6. Step 6: Final answer
    x = 102,737.63

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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.