Home / 287,540.45-396,807.39-166,753.35

Finding the Fourth Proportional to 287,540.45, 396,807.39 and 166,753.35

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Solution

The fourth proportional to 287,540.45, 396,807.39 and 166,753.35 is: 230,120.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,540.45 : 396,807.39 = 166,753.35 : x
  2. Step 2: Convert to fraction form
    287,540.45/396,807.39 = 166,753.35/x
  3. Step 3: Cross multiply
    287,540.45x = 396,807.39 × 166,753.35
  4. Step 4: Simplify right side
    287,540.45x = 66,168,959,603.22
  5. Step 5: Solve for x
    x = 66,168,959,603.22/287,540.45
  6. Step 6: Final answer
    x = 230,120.53

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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.