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Finding the Fourth Proportional to 251.95, 376.27 and 203.28

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Solution

The fourth proportional to 251.95, 376.27 and 203.28 is: 303.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.95 : 376.27 = 203.28 : x
  2. Step 2: Convert to fraction form
    251.95/376.27 = 203.28/x
  3. Step 3: Cross multiply
    251.95x = 376.27 × 203.28
  4. Step 4: Simplify right side
    251.95x = 76,488.17
  5. Step 5: Solve for x
    x = 76,488.17/251.95
  6. Step 6: Final answer
    x = 303.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.