Home / 215,667.24-323,346.13-82,435.20

Finding the Fourth Proportional to 215,667.24, 323,346.13 and 82,435.20

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Solution

The fourth proportional to 215,667.24, 323,346.13 and 82,435.20 is: 123,593.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,667.24 : 323,346.13 = 82,435.20 : x
  2. Step 2: Convert to fraction form
    215,667.24/323,346.13 = 82,435.20/x
  3. Step 3: Cross multiply
    215,667.24x = 323,346.13 × 82,435.20
  4. Step 4: Simplify right side
    215,667.24x = 26,655,102,895.78
  5. Step 5: Solve for x
    x = 26,655,102,895.78/215,667.24
  6. Step 6: Final answer
    x = 123,593.66

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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.