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Finding the Fourth Proportional to 251.10, 375.09 and 246.78

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Solution

The fourth proportional to 251.10, 375.09 and 246.78 is: 368.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.10 : 375.09 = 246.78 : x
  2. Step 2: Convert to fraction form
    251.10/375.09 = 246.78/x
  3. Step 3: Cross multiply
    251.10x = 375.09 × 246.78
  4. Step 4: Simplify right side
    251.10x = 92,564.71
  5. Step 5: Solve for x
    x = 92,564.71/251.10
  6. Step 6: Final answer
    x = 368.64

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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.