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Finding the Fourth Proportional to 220,514.01, 330,848.78 and 80,286.81

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Solution

The fourth proportional to 220,514.01, 330,848.78 and 80,286.81 is: 120,458.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,514.01 : 330,848.78 = 80,286.81 : x
  2. Step 2: Convert to fraction form
    220,514.01/330,848.78 = 80,286.81/x
  3. Step 3: Cross multiply
    220,514.01x = 330,848.78 × 80,286.81
  4. Step 4: Simplify right side
    220,514.01x = 26,562,792,737.16
  5. Step 5: Solve for x
    x = 26,562,792,737.16/220,514.01
  6. Step 6: Final answer
    x = 120,458.53

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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.