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Finding the Fourth Proportional to 510.56, 767.22 and 267.27

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Solution

The fourth proportional to 510.56, 767.22 and 267.27 is: 401.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.56 : 767.22 = 267.27 : x
  2. Step 2: Convert to fraction form
    510.56/767.22 = 267.27/x
  3. Step 3: Cross multiply
    510.56x = 767.22 × 267.27
  4. Step 4: Simplify right side
    510.56x = 205,054.89
  5. Step 5: Solve for x
    x = 205,054.89/510.56
  6. Step 6: Final answer
    x = 401.63

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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.