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Finding the Fourth Proportional to 362.58, 543.81 and 189.34

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Solution

The fourth proportional to 362.58, 543.81 and 189.34 is: 283.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.58 : 543.81 = 189.34 : x
  2. Step 2: Convert to fraction form
    362.58/543.81 = 189.34/x
  3. Step 3: Cross multiply
    362.58x = 543.81 × 189.34
  4. Step 4: Simplify right side
    362.58x = 102,964.34
  5. Step 5: Solve for x
    x = 102,964.34/362.58
  6. Step 6: Final answer
    x = 283.98

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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.