Home / 215,540.98-323,312.07-75,299.60

Finding the Fourth Proportional to 215,540.98, 323,312.07 and 75,299.60

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Solution

The fourth proportional to 215,540.98, 323,312.07 and 75,299.60 is: 112,949.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,540.98 : 323,312.07 = 75,299.60 : x
  2. Step 2: Convert to fraction form
    215,540.98/323,312.07 = 75,299.60/x
  3. Step 3: Cross multiply
    215,540.98x = 323,312.07 × 75,299.60
  4. Step 4: Simplify right side
    215,540.98x = 24,345,269,546.17
  5. Step 5: Solve for x
    x = 24,345,269,546.17/215,540.98
  6. Step 6: Final answer
    x = 112,949.61

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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.