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Finding the Fourth Proportional to 198,358.83, 273,766.11 and 112,322.25

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Solution

The fourth proportional to 198,358.83, 273,766.11 and 112,322.25 is: 155,022.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,358.83 : 273,766.11 = 112,322.25 : x
  2. Step 2: Convert to fraction form
    198,358.83/273,766.11 = 112,322.25/x
  3. Step 3: Cross multiply
    198,358.83x = 273,766.11 × 112,322.25
  4. Step 4: Simplify right side
    198,358.83x = 30,750,025,448.95
  5. Step 5: Solve for x
    x = 30,750,025,448.95/198,358.83
  6. Step 6: Final answer
    x = 155,022.22

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1.5x scale

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.