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Finding the Fourth Proportional to 253.09, 349.46 and 174.37

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Solution

The fourth proportional to 253.09, 349.46 and 174.37 is: 240.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.09 : 349.46 = 174.37 : x
  2. Step 2: Convert to fraction form
    253.09/349.46 = 174.37/x
  3. Step 3: Cross multiply
    253.09x = 349.46 × 174.37
  4. Step 4: Simplify right side
    253.09x = 60,935.34
  5. Step 5: Solve for x
    x = 60,935.34/253.09
  6. Step 6: Final answer
    x = 240.77

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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.