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Finding the Fourth Proportional to 218,374.42, 327,366.68 and 85,223.64

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Solution

The fourth proportional to 218,374.42, 327,366.68 and 85,223.64 is: 127,759.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,374.42 : 327,366.68 = 85,223.64 : x
  2. Step 2: Convert to fraction form
    218,374.42/327,366.68 = 85,223.64/x
  3. Step 3: Cross multiply
    218,374.42x = 327,366.68 × 85,223.64
  4. Step 4: Simplify right side
    218,374.42x = 27,899,380,084.32
  5. Step 5: Solve for x
    x = 27,899,380,084.32/218,374.42
  6. Step 6: Final answer
    x = 127,759.38

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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.