Home / 287,540.95-396,808.08-166,753.85

Finding the Fourth Proportional to 287,540.95, 396,808.08 and 166,753.85

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Solution

The fourth proportional to 287,540.95, 396,808.08 and 166,753.85 is: 230,121.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,540.95 : 396,808.08 = 166,753.85 : x
  2. Step 2: Convert to fraction form
    287,540.95/396,808.08 = 166,753.85/x
  3. Step 3: Cross multiply
    287,540.95x = 396,808.08 × 166,753.85
  4. Step 4: Simplify right side
    287,540.95x = 66,169,273,067.07
  5. Step 5: Solve for x
    x = 66,169,273,067.07/287,540.95
  6. Step 6: Final answer
    x = 230,121.22

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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.