Home / 287,435.22-396,672.87-160,110.90

Finding the Fourth Proportional to 287,435.22, 396,672.87 and 160,110.90

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Solution

The fourth proportional to 287,435.22, 396,672.87 and 160,110.90 is: 220,959.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,435.22 : 396,672.87 = 160,110.90 : x
  2. Step 2: Convert to fraction form
    287,435.22/396,672.87 = 160,110.90/x
  3. Step 3: Cross multiply
    287,435.22x = 396,672.87 × 160,110.90
  4. Step 4: Simplify right side
    287,435.22x = 63,511,650,221.28
  5. Step 5: Solve for x
    x = 63,511,650,221.28/287,435.22
  6. Step 6: Final answer
    x = 220,959.87

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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.