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Finding the Fourth Proportional to 215,640.36, 323,523.72 and 110,532.60

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Solution

The fourth proportional to 215,640.36, 323,523.72 and 110,532.60 is: 165,831.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,640.36 : 323,523.72 = 110,532.60 : x
  2. Step 2: Convert to fraction form
    215,640.36/323,523.72 = 110,532.60/x
  3. Step 3: Cross multiply
    215,640.36x = 323,523.72 × 110,532.60
  4. Step 4: Simplify right side
    215,640.36x = 35,759,917,933.27
  5. Step 5: Solve for x
    x = 35,759,917,933.27/215,640.36
  6. Step 6: Final answer
    x = 165,831.28

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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.