Home / 198,441.28-296,975.44-122,508.64

Finding the Fourth Proportional to 198,441.28, 296,975.44 and 122,508.64

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Solution

The fourth proportional to 198,441.28, 296,975.44 and 122,508.64 is: 183,339.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,441.28 : 296,975.44 = 122,508.64 : x
  2. Step 2: Convert to fraction form
    198,441.28/296,975.44 = 122,508.64/x
  3. Step 3: Cross multiply
    198,441.28x = 296,975.44 × 122,508.64
  4. Step 4: Simplify right side
    198,441.28x = 36,382,057,267.80
  5. Step 5: Solve for x
    x = 36,382,057,267.80/198,441.28
  6. Step 6: Final answer
    x = 183,339.16

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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.