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Finding the Fourth Proportional to 491.11, 735.62 and 336.31

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Solution

The fourth proportional to 491.11, 735.62 and 336.31 is: 503.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    491.11 : 735.62 = 336.31 : x
  2. Step 2: Convert to fraction form
    491.11/735.62 = 336.31/x
  3. Step 3: Cross multiply
    491.11x = 735.62 × 336.31
  4. Step 4: Simplify right side
    491.11x = 247,396.36
  5. Step 5: Solve for x
    x = 247,396.36/491.11
  6. Step 6: Final answer
    x = 503.75

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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.