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Finding the Fourth Proportional to 247,217.97, 341,167.49 and 139,804

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Solution

The fourth proportional to 247,217.97, 341,167.49 and 139,804 is: 192,933.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,217.97 : 341,167.49 = 139,804 : x
  2. Step 2: Convert to fraction form
    247,217.97/341,167.49 = 139,804/x
  3. Step 3: Cross multiply
    247,217.97x = 341,167.49 × 139,804
  4. Step 4: Simplify right side
    247,217.97x = 47,696,579,771.96
  5. Step 5: Solve for x
    x = 47,696,579,771.96/247,217.97
  6. Step 6: Final answer
    x = 192,933.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.