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Finding the Fourth Proportional to 514.97, 711.12 and 349.58

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Solution

The fourth proportional to 514.97, 711.12 and 349.58 is: 482.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    514.97 : 711.12 = 349.58 : x
  2. Step 2: Convert to fraction form
    514.97/711.12 = 349.58/x
  3. Step 3: Cross multiply
    514.97x = 711.12 × 349.58
  4. Step 4: Simplify right side
    514.97x = 248,590.96
  5. Step 5: Solve for x
    x = 248,590.96/514.97
  6. Step 6: Final answer
    x = 482.73

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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.