Home / 287,538.22-396,805.44-158,481.28

Finding the Fourth Proportional to 287,538.22, 396,805.44 and 158,481.28

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Solution

The fourth proportional to 287,538.22, 396,805.44 and 158,481.28 is: 218,705.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,538.22 : 396,805.44 = 158,481.28 : x
  2. Step 2: Convert to fraction form
    287,538.22/396,805.44 = 158,481.28/x
  3. Step 3: Cross multiply
    287,538.22x = 396,805.44 × 158,481.28
  4. Step 4: Simplify right side
    287,538.22x = 62,886,234,042.16
  5. Step 5: Solve for x
    x = 62,886,234,042.16/287,538.22
  6. Step 6: Final answer
    x = 218,705.65

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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.