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Finding the Fourth Proportional to 251.56, 376.93 and 148.94

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Solution

The fourth proportional to 251.56, 376.93 and 148.94 is: 223.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.56 : 376.93 = 148.94 : x
  2. Step 2: Convert to fraction form
    251.56/376.93 = 148.94/x
  3. Step 3: Cross multiply
    251.56x = 376.93 × 148.94
  4. Step 4: Simplify right side
    251.56x = 56,137.32
  5. Step 5: Solve for x
    x = 56,137.32/251.56
  6. Step 6: Final answer
    x = 223.16

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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.