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Finding the Fourth Proportional to 516.82, 774.14 and 401.08

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Solution

The fourth proportional to 516.82, 774.14 and 401.08 is: 600.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    516.82 : 774.14 = 401.08 : x
  2. Step 2: Convert to fraction form
    516.82/774.14 = 401.08/x
  3. Step 3: Cross multiply
    516.82x = 774.14 × 401.08
  4. Step 4: Simplify right side
    516.82x = 310,492.07
  5. Step 5: Solve for x
    x = 310,492.07/516.82
  6. Step 6: Final answer
    x = 600.77

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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.