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Finding the Fourth Proportional to 218,256.66, 327,389.04 and 68,493.60

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Solution

The fourth proportional to 218,256.66, 327,389.04 and 68,493.60 is: 102,741.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,256.66 : 327,389.04 = 68,493.60 : x
  2. Step 2: Convert to fraction form
    218,256.66/327,389.04 = 68,493.60/x
  3. Step 3: Cross multiply
    218,256.66x = 327,389.04 × 68,493.60
  4. Step 4: Simplify right side
    218,256.66x = 22,424,053,950.14
  5. Step 5: Solve for x
    x = 22,424,053,950.14/218,256.66
  6. Step 6: Final answer
    x = 102,741.67

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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.