Home / 215,169.36-322,063.92-115,079.28

Finding the Fourth Proportional to 215,169.36, 322,063.92 and 115,079.28

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Solution

The fourth proportional to 215,169.36, 322,063.92 and 115,079.28 is: 172,249.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,169.36 : 322,063.92 = 115,079.28 : x
  2. Step 2: Convert to fraction form
    215,169.36/322,063.92 = 115,079.28/x
  3. Step 3: Cross multiply
    215,169.36x = 322,063.92 × 115,079.28
  4. Step 4: Simplify right side
    215,169.36x = 37,062,884,027.58
  5. Step 5: Solve for x
    x = 37,062,884,027.58/215,169.36
  6. Step 6: Final answer
    x = 172,249.82

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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.