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Finding the Fourth Proportional to 491.14, 737.05 and 217.09

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Solution

The fourth proportional to 491.14, 737.05 and 217.09 is: 325.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    491.14 : 737.05 = 217.09 : x
  2. Step 2: Convert to fraction form
    491.14/737.05 = 217.09/x
  3. Step 3: Cross multiply
    491.14x = 737.05 × 217.09
  4. Step 4: Simplify right side
    491.14x = 160,006.18
  5. Step 5: Solve for x
    x = 160,006.18/491.14
  6. Step 6: Final answer
    x = 325.79

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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.