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Finding the Fourth Proportional to 218,082.30, 327,145.05 and 75,905.70

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Solution

The fourth proportional to 218,082.30, 327,145.05 and 75,905.70 is: 113,866.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,082.30 : 327,145.05 = 75,905.70 : x
  2. Step 2: Convert to fraction form
    218,082.30/327,145.05 = 75,905.70/x
  3. Step 3: Cross multiply
    218,082.30x = 327,145.05 × 75,905.70
  4. Step 4: Simplify right side
    218,082.30x = 24,832,174,021.79
  5. Step 5: Solve for x
    x = 24,832,174,021.79/218,082.30
  6. Step 6: Final answer
    x = 113,866.07

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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.