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Finding the Fourth Proportional to 491.82, 737.82 and 203.28

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Solution

The fourth proportional to 491.82, 737.82 and 203.28 is: 304.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    491.82 : 737.82 = 203.28 : x
  2. Step 2: Convert to fraction form
    491.82/737.82 = 203.28/x
  3. Step 3: Cross multiply
    491.82x = 737.82 × 203.28
  4. Step 4: Simplify right side
    491.82x = 149,984.05
  5. Step 5: Solve for x
    x = 149,984.05/491.82
  6. Step 6: Final answer
    x = 304.96

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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.