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Finding the Fourth Proportional to 251.64, 377.56 and 135.94

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Solution

The fourth proportional to 251.64, 377.56 and 135.94 is: 203.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.64 : 377.56 = 135.94 : x
  2. Step 2: Convert to fraction form
    251.64/377.56 = 135.94/x
  3. Step 3: Cross multiply
    251.64x = 377.56 × 135.94
  4. Step 4: Simplify right side
    251.64x = 51,325.51
  5. Step 5: Solve for x
    x = 51,325.51/251.64
  6. Step 6: Final answer
    x = 203.96

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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.