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Finding the Fourth Proportional to 514.23, 770.58 and 270.17

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Solution

The fourth proportional to 514.23, 770.58 and 270.17 is: 404.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    514.23 : 770.58 = 270.17 : x
  2. Step 2: Convert to fraction form
    514.23/770.58 = 270.17/x
  3. Step 3: Cross multiply
    514.23x = 770.58 × 270.17
  4. Step 4: Simplify right side
    514.23x = 208,183.75
  5. Step 5: Solve for x
    x = 208,183.75/514.23
  6. Step 6: Final answer
    x = 404.85

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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.