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Finding the Fourth Proportional to 214,082.58, 321,168.93 and 80,959.86

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Solution

The fourth proportional to 214,082.58, 321,168.93 and 80,959.86 is: 121,456.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,082.58 : 321,168.93 = 80,959.86 : x
  2. Step 2: Convert to fraction form
    214,082.58/321,168.93 = 80,959.86/x
  3. Step 3: Cross multiply
    214,082.58x = 321,168.93 × 80,959.86
  4. Step 4: Simplify right side
    214,082.58x = 26,001,791,609.15
  5. Step 5: Solve for x
    x = 26,001,791,609.15/214,082.58
  6. Step 6: Final answer
    x = 121,456.83

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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.