Home / 215,422.10-323,147.55-73,265.30

Finding the Fourth Proportional to 215,422.10, 323,147.55 and 73,265.30

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Solution

The fourth proportional to 215,422.10, 323,147.55 and 73,265.30 is: 109,902.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,422.10 : 323,147.55 = 73,265.30 : x
  2. Step 2: Convert to fraction form
    215,422.10/323,147.55 = 73,265.30/x
  3. Step 3: Cross multiply
    215,422.10x = 323,147.55 × 73,265.30
  4. Step 4: Simplify right side
    215,422.10x = 23,675,502,195.02
  5. Step 5: Solve for x
    x = 23,675,502,195.02/215,422.10
  6. Step 6: Final answer
    x = 109,902.85

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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.