Home / 287,531.46-396,777.22-158,469.54

Finding the Fourth Proportional to 287,531.46, 396,777.22 and 158,469.54

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Solution

The fourth proportional to 287,531.46, 396,777.22 and 158,469.54 is: 218,679.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,531.46 : 396,777.22 = 158,469.54 : x
  2. Step 2: Convert to fraction form
    287,531.46/396,777.22 = 158,469.54/x
  3. Step 3: Cross multiply
    287,531.46x = 396,777.22 × 158,469.54
  4. Step 4: Simplify right side
    287,531.46x = 62,877,101,930.14
  5. Step 5: Solve for x
    x = 62,877,101,930.14/287,531.46
  6. Step 6: Final answer
    x = 218,679.04

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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.