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Finding the Fourth Proportional to 367.76, 507.40 and 251.44

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Solution

The fourth proportional to 367.76, 507.40 and 251.44 is: 346.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.76 : 507.40 = 251.44 : x
  2. Step 2: Convert to fraction form
    367.76/507.40 = 251.44/x
  3. Step 3: Cross multiply
    367.76x = 507.40 × 251.44
  4. Step 4: Simplify right side
    367.76x = 127,580.66
  5. Step 5: Solve for x
    x = 127,580.66/367.76
  6. Step 6: Final answer
    x = 346.91

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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.