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Finding the Fourth Proportional to 263.45, 362.72 and 224.03

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Solution

The fourth proportional to 263.45, 362.72 and 224.03 is: 308.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.45 : 362.72 = 224.03 : x
  2. Step 2: Convert to fraction form
    263.45/362.72 = 224.03/x
  3. Step 3: Cross multiply
    263.45x = 362.72 × 224.03
  4. Step 4: Simplify right side
    263.45x = 81,261.63
  5. Step 5: Solve for x
    x = 81,261.63/263.45
  6. Step 6: Final answer
    x = 308.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.