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Finding the Fourth Proportional to 243.07, 362.57 and 223.17

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Solution

The fourth proportional to 243.07, 362.57 and 223.17 is: 332.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.07 : 362.57 = 223.17 : x
  2. Step 2: Convert to fraction form
    243.07/362.57 = 223.17/x
  3. Step 3: Cross multiply
    243.07x = 362.57 × 223.17
  4. Step 4: Simplify right side
    243.07x = 80,914.75
  5. Step 5: Solve for x
    x = 80,914.75/243.07
  6. Step 6: Final answer
    x = 332.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.