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Finding the Fourth Proportional to 174.07, 239.79 and 146.53

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Solution

The fourth proportional to 174.07, 239.79 and 146.53 is: 201.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.07 : 239.79 = 146.53 : x
  2. Step 2: Convert to fraction form
    174.07/239.79 = 146.53/x
  3. Step 3: Cross multiply
    174.07x = 239.79 × 146.53
  4. Step 4: Simplify right side
    174.07x = 35,136.43
  5. Step 5: Solve for x
    x = 35,136.43/174.07
  6. Step 6: Final answer
    x = 201.85

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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.