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Finding the Fourth Proportional to 218,272.40, 327,101.40 and 161,670.80

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Solution

The fourth proportional to 218,272.40, 327,101.40 and 161,670.80 is: 242,278.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,272.40 : 327,101.40 = 161,670.80 : x
  2. Step 2: Convert to fraction form
    218,272.40/327,101.40 = 161,670.80/x
  3. Step 3: Cross multiply
    218,272.40x = 327,101.40 × 161,670.80
  4. Step 4: Simplify right side
    218,272.40x = 52,882,745,019.12
  5. Step 5: Solve for x
    x = 52,882,745,019.12/218,272.40
  6. Step 6: Final answer
    x = 242,278.66

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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.