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Finding the Fourth Proportional to 218,056.80, 327,344.40 and 123,362.40

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Solution

The fourth proportional to 218,056.80, 327,344.40 and 123,362.40 is: 185,190.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,056.80 : 327,344.40 = 123,362.40 : x
  2. Step 2: Convert to fraction form
    218,056.80/327,344.40 = 123,362.40/x
  3. Step 3: Cross multiply
    218,056.80x = 327,344.40 × 123,362.40
  4. Step 4: Simplify right side
    218,056.80x = 40,381,990,810.56
  5. Step 5: Solve for x
    x = 40,381,990,810.56/218,056.80
  6. Step 6: Final answer
    x = 185,190.24

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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.