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Finding the Fourth Proportional to 506.87, 699.48 and 273.99

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Solution

The fourth proportional to 506.87, 699.48 and 273.99 is: 378.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    506.87 : 699.48 = 273.99 : x
  2. Step 2: Convert to fraction form
    506.87/699.48 = 273.99/x
  3. Step 3: Cross multiply
    506.87x = 699.48 × 273.99
  4. Step 4: Simplify right side
    506.87x = 191,652.63
  5. Step 5: Solve for x
    x = 191,652.63/506.87
  6. Step 6: Final answer
    x = 378.11

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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.