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Finding the Fourth Proportional to 267.35, 402.48 and 245.03

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Solution

The fourth proportional to 267.35, 402.48 and 245.03 is: 368.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.35 : 402.48 = 245.03 : x
  2. Step 2: Convert to fraction form
    267.35/402.48 = 245.03/x
  3. Step 3: Cross multiply
    267.35x = 402.48 × 245.03
  4. Step 4: Simplify right side
    267.35x = 98,617.66
  5. Step 5: Solve for x
    x = 98,617.66/267.35
  6. Step 6: Final answer
    x = 368.88

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.