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Finding the Fourth Proportional to 178.65, 266.45 and 164.07

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Solution

The fourth proportional to 178.65, 266.45 and 164.07 is: 244.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.65 : 266.45 = 164.07 : x
  2. Step 2: Convert to fraction form
    178.65/266.45 = 164.07/x
  3. Step 3: Cross multiply
    178.65x = 266.45 × 164.07
  4. Step 4: Simplify right side
    178.65x = 43,716.45
  5. Step 5: Solve for x
    x = 43,716.45/178.65
  6. Step 6: Final answer
    x = 244.70

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.