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Finding the Fourth Proportional to 175.89, 242.74 and 102.23

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Solution

The fourth proportional to 175.89, 242.74 and 102.23 is: 141.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.89 : 242.74 = 102.23 : x
  2. Step 2: Convert to fraction form
    175.89/242.74 = 102.23/x
  3. Step 3: Cross multiply
    175.89x = 242.74 × 102.23
  4. Step 4: Simplify right side
    175.89x = 24,813.84
  5. Step 5: Solve for x
    x = 24,813.84/175.89
  6. Step 6: Final answer
    x = 141.08

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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.