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Finding the Fourth Proportional to 538.87, 808.14 and 173.56

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Solution

The fourth proportional to 538.87, 808.14 and 173.56 is: 260.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    538.87 : 808.14 = 173.56 : x
  2. Step 2: Convert to fraction form
    538.87/808.14 = 173.56/x
  3. Step 3: Cross multiply
    538.87x = 808.14 × 173.56
  4. Step 4: Simplify right side
    538.87x = 140,260.78
  5. Step 5: Solve for x
    x = 140,260.78/538.87
  6. Step 6: Final answer
    x = 260.29

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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.