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Finding the Fourth Proportional to 215,693.80, 323,540.70 and 110,717.80

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Solution

The fourth proportional to 215,693.80, 323,540.70 and 110,717.80 is: 166,076.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,693.80 : 323,540.70 = 110,717.80 : x
  2. Step 2: Convert to fraction form
    215,693.80/323,540.70 = 110,717.80/x
  3. Step 3: Cross multiply
    215,693.80x = 323,540.70 × 110,717.80
  4. Step 4: Simplify right side
    215,693.80x = 35,821,714,514.46
  5. Step 5: Solve for x
    x = 35,821,714,514.46/215,693.80
  6. Step 6: Final answer
    x = 166,076.70

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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.