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Finding the Fourth Proportional to 253.98, 350.60 and 165.50

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Solution

The fourth proportional to 253.98, 350.60 and 165.50 is: 228.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.98 : 350.60 = 165.50 : x
  2. Step 2: Convert to fraction form
    253.98/350.60 = 165.50/x
  3. Step 3: Cross multiply
    253.98x = 350.60 × 165.50
  4. Step 4: Simplify right side
    253.98x = 58,021.72
  5. Step 5: Solve for x
    x = 58,021.72/253.98
  6. Step 6: Final answer
    x = 228.45

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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.