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Finding the Fourth Proportional to 495.18, 742.96 and 264.08

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Solution

The fourth proportional to 495.18, 742.96 and 264.08 is: 396.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.18 : 742.96 = 264.08 : x
  2. Step 2: Convert to fraction form
    495.18/742.96 = 264.08/x
  3. Step 3: Cross multiply
    495.18x = 742.96 × 264.08
  4. Step 4: Simplify right side
    495.18x = 196,200.88
  5. Step 5: Solve for x
    x = 196,200.88/495.18
  6. Step 6: Final answer
    x = 396.22

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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.