Home / 198,768.29-298,290.68-128,473.25

Finding the Fourth Proportional to 198,768.29, 298,290.68 and 128,473.25

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Solution

The fourth proportional to 198,768.29, 298,290.68 and 128,473.25 is: 192,799.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,768.29 : 298,290.68 = 128,473.25 : x
  2. Step 2: Convert to fraction form
    198,768.29/298,290.68 = 128,473.25/x
  3. Step 3: Cross multiply
    198,768.29x = 298,290.68 × 128,473.25
  4. Step 4: Simplify right side
    198,768.29x = 38,322,373,104.31
  5. Step 5: Solve for x
    x = 38,322,373,104.31/198,768.29
  6. Step 6: Final answer
    x = 192,799.23

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1.5x scale

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.