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Finding the Fourth Proportional to 218,530.20, 327,872.10 and 210,850.20

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Solution

The fourth proportional to 218,530.20, 327,872.10 and 210,850.20 is: 316,349.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,530.20 : 327,872.10 = 210,850.20 : x
  2. Step 2: Convert to fraction form
    218,530.20/327,872.10 = 210,850.20/x
  3. Step 3: Cross multiply
    218,530.20x = 327,872.10 × 210,850.20
  4. Step 4: Simplify right side
    218,530.20x = 69,131,897,859.42
  5. Step 5: Solve for x
    x = 69,131,897,859.42/218,530.20
  6. Step 6: Final answer
    x = 316,349.40

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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.