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Finding the Fourth Proportional to 514.06, 772.47 and 270.76

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Solution

The fourth proportional to 514.06, 772.47 and 270.76 is: 406.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    514.06 : 772.47 = 270.76 : x
  2. Step 2: Convert to fraction form
    514.06/772.47 = 270.76/x
  3. Step 3: Cross multiply
    514.06x = 772.47 × 270.76
  4. Step 4: Simplify right side
    514.06x = 209,153.98
  5. Step 5: Solve for x
    x = 209,153.98/514.06
  6. Step 6: Final answer
    x = 406.87

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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.