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Finding the Fourth Proportional to 218,157.40, 327,039.25 and 151,628.86

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Solution

The fourth proportional to 218,157.40, 327,039.25 and 151,628.86 is: 227,306.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,157.40 : 327,039.25 = 151,628.86 : x
  2. Step 2: Convert to fraction form
    218,157.40/327,039.25 = 151,628.86/x
  3. Step 3: Cross multiply
    218,157.40x = 327,039.25 × 151,628.86
  4. Step 4: Simplify right side
    218,157.40x = 49,588,588,652.76
  5. Step 5: Solve for x
    x = 49,588,588,652.76/218,157.40
  6. Step 6: Final answer
    x = 227,306.47

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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.