Home / 215,439.94-323,121.03-75,238.66

Finding the Fourth Proportional to 215,439.94, 323,121.03 and 75,238.66

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Solution

The fourth proportional to 215,439.94, 323,121.03 and 75,238.66 is: 112,844.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,439.94 : 323,121.03 = 75,238.66 : x
  2. Step 2: Convert to fraction form
    215,439.94/323,121.03 = 75,238.66/x
  3. Step 3: Cross multiply
    215,439.94x = 323,121.03 × 75,238.66
  4. Step 4: Simplify right side
    215,439.94x = 24,311,193,315.02
  5. Step 5: Solve for x
    x = 24,311,193,315.02/215,439.94
  6. Step 6: Final answer
    x = 112,844.41

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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.