Home / 287,268.10-396,446.33-172,581.82

Finding the Fourth Proportional to 287,268.10, 396,446.33 and 172,581.82

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Solution

The fourth proportional to 287,268.10, 396,446.33 and 172,581.82 is: 238,172.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,268.10 : 396,446.33 = 172,581.82 : x
  2. Step 2: Convert to fraction form
    287,268.10/396,446.33 = 172,581.82/x
  3. Step 3: Cross multiply
    287,268.10x = 396,446.33 × 172,581.82
  4. Step 4: Simplify right side
    287,268.10x = 68,419,429,163.72
  5. Step 5: Solve for x
    x = 68,419,429,163.72/287,268.10
  6. Step 6: Final answer
    x = 238,172.74

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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.