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Finding the Fourth Proportional to 218,704.20, 327,881.10 and 201,208.20

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Solution

The fourth proportional to 218,704.20, 327,881.10 and 201,208.20 is: 301,651.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,704.20 : 327,881.10 = 201,208.20 : x
  2. Step 2: Convert to fraction form
    218,704.20/327,881.10 = 201,208.20/x
  3. Step 3: Cross multiply
    218,704.20x = 327,881.10 × 201,208.20
  4. Step 4: Simplify right side
    218,704.20x = 65,972,365,945.02
  5. Step 5: Solve for x
    x = 65,972,365,945.02/218,704.20
  6. Step 6: Final answer
    x = 301,651.12

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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.