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Finding the Fourth Proportional to 275,983.11, 380,891.90 and 168,530.54

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Solution

The fourth proportional to 275,983.11, 380,891.90 and 168,530.54 is: 232,593.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,983.11 : 380,891.90 = 168,530.54 : x
  2. Step 2: Convert to fraction form
    275,983.11/380,891.90 = 168,530.54/x
  3. Step 3: Cross multiply
    275,983.11x = 380,891.90 × 168,530.54
  4. Step 4: Simplify right side
    275,983.11x = 64,191,916,105.49
  5. Step 5: Solve for x
    x = 64,191,916,105.49/275,983.11
  6. Step 6: Final answer
    x = 232,593.64

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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.