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Finding the Fourth Proportional to 218,974.41, 302,183.87 and 118,372.41

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Solution

The fourth proportional to 218,974.41, 302,183.87 and 118,372.41 is: 163,353.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,974.41 : 302,183.87 = 118,372.41 : x
  2. Step 2: Convert to fraction form
    218,974.41/302,183.87 = 118,372.41/x
  3. Step 3: Cross multiply
    218,974.41x = 302,183.87 × 118,372.41
  4. Step 4: Simplify right side
    218,974.41x = 35,770,232,363.16
  5. Step 5: Solve for x
    x = 35,770,232,363.16/218,974.41
  6. Step 6: Final answer
    x = 163,353.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.