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Finding the Fourth Proportional to 491.53, 736.78 and 183.19

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Solution

The fourth proportional to 491.53, 736.78 and 183.19 is: 274.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    491.53 : 736.78 = 183.19 : x
  2. Step 2: Convert to fraction form
    491.53/736.78 = 183.19/x
  3. Step 3: Cross multiply
    491.53x = 736.78 × 183.19
  4. Step 4: Simplify right side
    491.53x = 134,970.73
  5. Step 5: Solve for x
    x = 134,970.73/491.53
  6. Step 6: Final answer
    x = 274.59

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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.