Home / 215,302.58-322,955.49-82,147.04

Finding the Fourth Proportional to 215,302.58, 322,955.49 and 82,147.04

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Solution

The fourth proportional to 215,302.58, 322,955.49 and 82,147.04 is: 123,221.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,302.58 : 322,955.49 = 82,147.04 : x
  2. Step 2: Convert to fraction form
    215,302.58/322,955.49 = 82,147.04/x
  3. Step 3: Cross multiply
    215,302.58x = 322,955.49 × 82,147.04
  4. Step 4: Simplify right side
    215,302.58x = 26,529,837,555.25
  5. Step 5: Solve for x
    x = 26,529,837,555.25/215,302.58
  6. Step 6: Final answer
    x = 123,221.18

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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.