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Finding the Fourth Proportional to 517.01, 775.52 and 151.76

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Solution

The fourth proportional to 517.01, 775.52 and 151.76 is: 227.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    517.01 : 775.52 = 151.76 : x
  2. Step 2: Convert to fraction form
    517.01/775.52 = 151.76/x
  3. Step 3: Cross multiply
    517.01x = 775.52 × 151.76
  4. Step 4: Simplify right side
    517.01x = 117,692.16
  5. Step 5: Solve for x
    x = 117,692.16/517.01
  6. Step 6: Final answer
    x = 227.64

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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.