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Finding the Fourth Proportional to 362.94, 543.93 and 218.70

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Solution

The fourth proportional to 362.94, 543.93 and 218.70 is: 327.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.94 : 543.93 = 218.70 : x
  2. Step 2: Convert to fraction form
    362.94/543.93 = 218.70/x
  3. Step 3: Cross multiply
    362.94x = 543.93 × 218.70
  4. Step 4: Simplify right side
    362.94x = 118,957.49
  5. Step 5: Solve for x
    x = 118,957.49/362.94
  6. Step 6: Final answer
    x = 327.76

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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.