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Finding the Fourth Proportional to 518.99, 777.31 and 244.49

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Solution

The fourth proportional to 518.99, 777.31 and 244.49 is: 366.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    518.99 : 777.31 = 244.49 : x
  2. Step 2: Convert to fraction form
    518.99/777.31 = 244.49/x
  3. Step 3: Cross multiply
    518.99x = 777.31 × 244.49
  4. Step 4: Simplify right side
    518.99x = 190,045.85
  5. Step 5: Solve for x
    x = 190,045.85/518.99
  6. Step 6: Final answer
    x = 366.19

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Similar ratio
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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.