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Finding the Fourth Proportional to 362.39, 543.60 and 118.89

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Solution

The fourth proportional to 362.39, 543.60 and 118.89 is: 178.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.39 : 543.60 = 118.89 : x
  2. Step 2: Convert to fraction form
    362.39/543.60 = 118.89/x
  3. Step 3: Cross multiply
    362.39x = 543.60 × 118.89
  4. Step 4: Simplify right side
    362.39x = 64,628.60
  5. Step 5: Solve for x
    x = 64,628.60/362.39
  6. Step 6: Final answer
    x = 178.34

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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.