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Finding the Fourth Proportional to 352.94, 486.33 and 242.06

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Solution

The fourth proportional to 352.94, 486.33 and 242.06 is: 333.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.94 : 486.33 = 242.06 : x
  2. Step 2: Convert to fraction form
    352.94/486.33 = 242.06/x
  3. Step 3: Cross multiply
    352.94x = 486.33 × 242.06
  4. Step 4: Simplify right side
    352.94x = 117,721.04
  5. Step 5: Solve for x
    x = 117,721.04/352.94
  6. Step 6: Final answer
    x = 333.54

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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.