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Finding the Fourth Proportional to 179,409.90, 247,540.95 and 115,671

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Solution

The fourth proportional to 179,409.90, 247,540.95 and 115,671 is: 159,597.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,409.90 : 247,540.95 = 115,671 : x
  2. Step 2: Convert to fraction form
    179,409.90/247,540.95 = 115,671/x
  3. Step 3: Cross multiply
    179,409.90x = 247,540.95 × 115,671
  4. Step 4: Simplify right side
    179,409.90x = 28,633,309,227.45
  5. Step 5: Solve for x
    x = 28,633,309,227.45/179,409.90
  6. Step 6: Final answer
    x = 159,597.15

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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.