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Finding the Fourth Proportional to 491.50, 736.44 and 247.69

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Solution

The fourth proportional to 491.50, 736.44 and 247.69 is: 371.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    491.50 : 736.44 = 247.69 : x
  2. Step 2: Convert to fraction form
    491.50/736.44 = 247.69/x
  3. Step 3: Cross multiply
    491.50x = 736.44 × 247.69
  4. Step 4: Simplify right side
    491.50x = 182,408.82
  5. Step 5: Solve for x
    x = 182,408.82/491.50
  6. Step 6: Final answer
    x = 371.13

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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.