Home / 215,412.82-322,638.09-156,112.31

Finding the Fourth Proportional to 215,412.82, 322,638.09 and 156,112.31

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Solution

The fourth proportional to 215,412.82, 322,638.09 and 156,112.31 is: 233,819.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,412.82 : 322,638.09 = 156,112.31 : x
  2. Step 2: Convert to fraction form
    215,412.82/322,638.09 = 156,112.31/x
  3. Step 3: Cross multiply
    215,412.82x = 322,638.09 × 156,112.31
  4. Step 4: Simplify right side
    215,412.82x = 50,367,777,745.06
  5. Step 5: Solve for x
    x = 50,367,777,745.06/215,412.82
  6. Step 6: Final answer
    x = 233,819.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.