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Finding the Fourth Proportional to 218,240.42, 327,440.58 and 91,912.46

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Solution

The fourth proportional to 218,240.42, 327,440.58 and 91,912.46 is: 137,902.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,240.42 : 327,440.58 = 91,912.46 : x
  2. Step 2: Convert to fraction form
    218,240.42/327,440.58 = 91,912.46/x
  3. Step 3: Cross multiply
    218,240.42x = 327,440.58 × 91,912.46
  4. Step 4: Simplify right side
    218,240.42x = 30,095,868,393.03
  5. Step 5: Solve for x
    x = 30,095,868,393.03/218,240.42
  6. Step 6: Final answer
    x = 137,902.36

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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.