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Finding the Fourth Proportional to 146,969.71, 220,414.53 and 40,328.39

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Solution

The fourth proportional to 146,969.71, 220,414.53 and 40,328.39 is: 60,481.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,969.71 : 220,414.53 = 40,328.39 : x
  2. Step 2: Convert to fraction form
    146,969.71/220,414.53 = 40,328.39/x
  3. Step 3: Cross multiply
    146,969.71x = 220,414.53 × 40,328.39
  4. Step 4: Simplify right side
    146,969.71x = 8,888,962,287.48
  5. Step 5: Solve for x
    x = 8,888,962,287.48/146,969.71
  6. Step 6: Final answer
    x = 60,481.59

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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.