Home / 287,077.80-396,165.42-158,023.92

Finding the Fourth Proportional to 287,077.80, 396,165.42 and 158,023.92

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Solution

The fourth proportional to 287,077.80, 396,165.42 and 158,023.92 is: 218,071.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,077.80 : 396,165.42 = 158,023.92 : x
  2. Step 2: Convert to fraction form
    287,077.80/396,165.42 = 158,023.92/x
  3. Step 3: Cross multiply
    287,077.80x = 396,165.42 × 158,023.92
  4. Step 4: Simplify right side
    287,077.80x = 62,603,612,636.85
  5. Step 5: Solve for x
    x = 62,603,612,636.85/287,077.80
  6. Step 6: Final answer
    x = 218,071.94

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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.