Home / 215,604.32-323,399.19-65,838.56

Finding the Fourth Proportional to 215,604.32, 323,399.19 and 65,838.56

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Solution

The fourth proportional to 215,604.32, 323,399.19 and 65,838.56 is: 98,755.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,604.32 : 323,399.19 = 65,838.56 : x
  2. Step 2: Convert to fraction form
    215,604.32/323,399.19 = 65,838.56/x
  3. Step 3: Cross multiply
    215,604.32x = 323,399.19 × 65,838.56
  4. Step 4: Simplify right side
    215,604.32x = 21,292,136,974.77
  5. Step 5: Solve for x
    x = 21,292,136,974.77/215,604.32
  6. Step 6: Final answer
    x = 98,755.61

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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.