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Finding the Fourth Proportional to 144,610.87, 216,865.49 and 43,378.74

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Solution

The fourth proportional to 144,610.87, 216,865.49 and 43,378.74 is: 65,052.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,610.87 : 216,865.49 = 43,378.74 : x
  2. Step 2: Convert to fraction form
    144,610.87/216,865.49 = 43,378.74/x
  3. Step 3: Cross multiply
    144,610.87x = 216,865.49 × 43,378.74
  4. Step 4: Simplify right side
    144,610.87x = 9,407,350,621.36
  5. Step 5: Solve for x
    x = 9,407,350,621.36/144,610.87
  6. Step 6: Final answer
    x = 65,052.86

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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.