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Finding the Fourth Proportional to 253.70, 350.46 and 251.98

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Solution

The fourth proportional to 253.70, 350.46 and 251.98 is: 348.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.70 : 350.46 = 251.98 : x
  2. Step 2: Convert to fraction form
    253.70/350.46 = 251.98/x
  3. Step 3: Cross multiply
    253.70x = 350.46 × 251.98
  4. Step 4: Simplify right side
    253.70x = 88,308.03
  5. Step 5: Solve for x
    x = 88,308.03/253.70
  6. Step 6: Final answer
    x = 348.08

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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.