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Finding the Fourth Proportional to 201.99, 302.38 and 174.66

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Solution

The fourth proportional to 201.99, 302.38 and 174.66 is: 261.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    201.99 : 302.38 = 174.66 : x
  2. Step 2: Convert to fraction form
    201.99/302.38 = 174.66/x
  3. Step 3: Cross multiply
    201.99x = 302.38 × 174.66
  4. Step 4: Simplify right side
    201.99x = 52,813.10
  5. Step 5: Solve for x
    x = 52,813.10/201.99
  6. Step 6: Final answer
    x = 261.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.