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Finding the Fourth Proportional to 495.61, 743.63 and 203.33

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Solution

The fourth proportional to 495.61, 743.63 and 203.33 is: 305.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.61 : 743.63 = 203.33 : x
  2. Step 2: Convert to fraction form
    495.61/743.63 = 203.33/x
  3. Step 3: Cross multiply
    495.61x = 743.63 × 203.33
  4. Step 4: Simplify right side
    495.61x = 151,202.29
  5. Step 5: Solve for x
    x = 151,202.29/495.61
  6. Step 6: Final answer
    x = 305.08

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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.