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Finding the Fourth Proportional to 253.20, 349.08 and 174.37

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Solution

The fourth proportional to 253.20, 349.08 and 174.37 is: 240.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.20 : 349.08 = 174.37 : x
  2. Step 2: Convert to fraction form
    253.20/349.08 = 174.37/x
  3. Step 3: Cross multiply
    253.20x = 349.08 × 174.37
  4. Step 4: Simplify right side
    253.20x = 60,869.08
  5. Step 5: Solve for x
    x = 60,869.08/253.20
  6. Step 6: Final answer
    x = 240.40

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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.