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Finding the Fourth Proportional to 495.69, 743.38 and 203.18

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Solution

The fourth proportional to 495.69, 743.38 and 203.18 is: 304.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.69 : 743.38 = 203.18 : x
  2. Step 2: Convert to fraction form
    495.69/743.38 = 203.18/x
  3. Step 3: Cross multiply
    495.69x = 743.38 × 203.18
  4. Step 4: Simplify right side
    495.69x = 151,035.72
  5. Step 5: Solve for x
    x = 151,035.72/495.69
  6. Step 6: Final answer
    x = 304.70

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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.