Home / 287,103.56-396,202.32-178,167.33

Finding the Fourth Proportional to 287,103.56, 396,202.32 and 178,167.33

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Solution

The fourth proportional to 287,103.56, 396,202.32 and 178,167.33 is: 245,870.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,103.56 : 396,202.32 = 178,167.33 : x
  2. Step 2: Convert to fraction form
    287,103.56/396,202.32 = 178,167.33/x
  3. Step 3: Cross multiply
    287,103.56x = 396,202.32 × 178,167.33
  4. Step 4: Simplify right side
    287,103.56x = 70,590,309,494.21
  5. Step 5: Solve for x
    x = 70,590,309,494.21/287,103.56
  6. Step 6: Final answer
    x = 245,870.55

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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.