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Finding the Fourth Proportional to 247,478.79, 340,993.19 and 166,766.14

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Solution

The fourth proportional to 247,478.79, 340,993.19 and 166,766.14 is: 229,781.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,478.79 : 340,993.19 = 166,766.14 : x
  2. Step 2: Convert to fraction form
    247,478.79/340,993.19 = 166,766.14/x
  3. Step 3: Cross multiply
    247,478.79x = 340,993.19 × 166,766.14
  4. Step 4: Simplify right side
    247,478.79x = 56,866,118,905.74
  5. Step 5: Solve for x
    x = 56,866,118,905.74/247,478.79
  6. Step 6: Final answer
    x = 229,781.78

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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.