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Finding the Fourth Proportional to 362.60, 543.91 and 119.09

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Solution

The fourth proportional to 362.60, 543.91 and 119.09 is: 178.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.60 : 543.91 = 119.09 : x
  2. Step 2: Convert to fraction form
    362.60/543.91 = 119.09/x
  3. Step 3: Cross multiply
    362.60x = 543.91 × 119.09
  4. Step 4: Simplify right side
    362.60x = 64,775.30
  5. Step 5: Solve for x
    x = 64,775.30/362.60
  6. Step 6: Final answer
    x = 178.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.