Home / 287,540.19-396,807.03-166,753.08

Finding the Fourth Proportional to 287,540.19, 396,807.03 and 166,753.08

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Solution

The fourth proportional to 287,540.19, 396,807.03 and 166,753.08 is: 230,120.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,540.19 : 396,807.03 = 166,753.08 : x
  2. Step 2: Convert to fraction form
    287,540.19/396,807.03 = 166,753.08/x
  3. Step 3: Cross multiply
    287,540.19x = 396,807.03 × 166,753.08
  4. Step 4: Simplify right side
    287,540.19x = 66,168,794,418.15
  5. Step 5: Solve for x
    x = 66,168,794,418.15/287,540.19
  6. Step 6: Final answer
    x = 230,120.16

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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.