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Finding the Fourth Proportional to 245,664.39, 368,496.76 and 68,171.57

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Solution

The fourth proportional to 245,664.39, 368,496.76 and 68,171.57 is: 102,257.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,664.39 : 368,496.76 = 68,171.57 : x
  2. Step 2: Convert to fraction form
    245,664.39/368,496.76 = 68,171.57/x
  3. Step 3: Cross multiply
    245,664.39x = 368,496.76 × 68,171.57
  4. Step 4: Simplify right side
    245,664.39x = 25,121,002,669.11
  5. Step 5: Solve for x
    x = 25,121,002,669.11/245,664.39
  6. Step 6: Final answer
    x = 102,257.40

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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.