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Finding the Fourth Proportional to 173.52, 240.68 and 172.08

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Solution

The fourth proportional to 173.52, 240.68 and 172.08 is: 238.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.52 : 240.68 = 172.08 : x
  2. Step 2: Convert to fraction form
    173.52/240.68 = 172.08/x
  3. Step 3: Cross multiply
    173.52x = 240.68 × 172.08
  4. Step 4: Simplify right side
    173.52x = 41,416.21
  5. Step 5: Solve for x
    x = 41,416.21/173.52
  6. Step 6: Final answer
    x = 238.68

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.