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Finding the Fourth Proportional to 218,108.04, 327,165.30 and 143,704.68

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Solution

The fourth proportional to 218,108.04, 327,165.30 and 143,704.68 is: 215,559.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,108.04 : 327,165.30 = 143,704.68 : x
  2. Step 2: Convert to fraction form
    218,108.04/327,165.30 = 143,704.68/x
  3. Step 3: Cross multiply
    218,108.04x = 327,165.30 × 143,704.68
  4. Step 4: Simplify right side
    218,108.04x = 47,015,184,743.60
  5. Step 5: Solve for x
    x = 47,015,184,743.60/218,108.04
  6. Step 6: Final answer
    x = 215,559.15

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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.