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Finding the Fourth Proportional to 176.40, 242.82 and 164.25

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Solution

The fourth proportional to 176.40, 242.82 and 164.25 is: 226.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.40 : 242.82 = 164.25 : x
  2. Step 2: Convert to fraction form
    176.40/242.82 = 164.25/x
  3. Step 3: Cross multiply
    176.40x = 242.82 × 164.25
  4. Step 4: Simplify right side
    176.40x = 39,883.19
  5. Step 5: Solve for x
    x = 39,883.19/176.40
  6. Step 6: Final answer
    x = 226.10

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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.