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Finding the Fourth Proportional to 218,077.44, 327,120 and 70,333.44

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Solution

The fourth proportional to 218,077.44, 327,120 and 70,333.44 is: 105,501.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,077.44 : 327,120 = 70,333.44 : x
  2. Step 2: Convert to fraction form
    218,077.44/327,120 = 70,333.44/x
  3. Step 3: Cross multiply
    218,077.44x = 327,120 × 70,333.44
  4. Step 4: Simplify right side
    218,077.44x = 23,007,474,892.80
  5. Step 5: Solve for x
    x = 23,007,474,892.80/218,077.44
  6. Step 6: Final answer
    x = 105,501.40

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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.