Home / 215,447.31-323,318.58-75,205.92

Finding the Fourth Proportional to 215,447.31, 323,318.58 and 75,205.92

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Solution

The fourth proportional to 215,447.31, 323,318.58 and 75,205.92 is: 112,860.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,447.31 : 323,318.58 = 75,205.92 : x
  2. Step 2: Convert to fraction form
    215,447.31/323,318.58 = 75,205.92/x
  3. Step 3: Cross multiply
    215,447.31x = 323,318.58 × 75,205.92
  4. Step 4: Simplify right side
    215,447.31x = 24,315,471,261.99
  5. Step 5: Solve for x
    x = 24,315,471,261.99/215,447.31
  6. Step 6: Final answer
    x = 112,860.41

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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.