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Finding the Fourth Proportional to 517.98, 777.18 and 244.08

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Solution

The fourth proportional to 517.98, 777.18 and 244.08 is: 366.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    517.98 : 777.18 = 244.08 : x
  2. Step 2: Convert to fraction form
    517.98/777.18 = 244.08/x
  3. Step 3: Cross multiply
    517.98x = 777.18 × 244.08
  4. Step 4: Simplify right side
    517.98x = 189,694.09
  5. Step 5: Solve for x
    x = 189,694.09/517.98
  6. Step 6: Final answer
    x = 366.22

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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.