Home / 287,376.18-396,579.60-166,540.74

Finding the Fourth Proportional to 287,376.18, 396,579.60 and 166,540.74

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Solution

The fourth proportional to 287,376.18, 396,579.60 and 166,540.74 is: 229,826.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,376.18 : 396,579.60 = 166,540.74 : x
  2. Step 2: Convert to fraction form
    287,376.18/396,579.60 = 166,540.74/x
  3. Step 3: Cross multiply
    287,376.18x = 396,579.60 × 166,540.74
  4. Step 4: Simplify right side
    287,376.18x = 66,046,660,052.90
  5. Step 5: Solve for x
    x = 66,046,660,052.90/287,376.18
  6. Step 6: Final answer
    x = 229,826.49

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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.