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Finding the Fourth Proportional to 188,440.40, 282,660.60 and 132,453.20

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Solution

The fourth proportional to 188,440.40, 282,660.60 and 132,453.20 is: 198,679.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,440.40 : 282,660.60 = 132,453.20 : x
  2. Step 2: Convert to fraction form
    188,440.40/282,660.60 = 132,453.20/x
  3. Step 3: Cross multiply
    188,440.40x = 282,660.60 × 132,453.20
  4. Step 4: Simplify right side
    188,440.40x = 37,439,300,983.92
  5. Step 5: Solve for x
    x = 37,439,300,983.92/188,440.40
  6. Step 6: Final answer
    x = 198,679.80

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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.