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Finding the Fourth Proportional to 275,453.08, 380,132.82 and 154,601.88

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Solution

The fourth proportional to 275,453.08, 380,132.82 and 154,601.88 is: 213,354.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,453.08 : 380,132.82 = 154,601.88 : x
  2. Step 2: Convert to fraction form
    275,453.08/380,132.82 = 154,601.88/x
  3. Step 3: Cross multiply
    275,453.08x = 380,132.82 × 154,601.88
  4. Step 4: Simplify right side
    275,453.08x = 58,769,248,621.70
  5. Step 5: Solve for x
    x = 58,769,248,621.70/275,453.08
  6. Step 6: Final answer
    x = 213,354.84

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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.