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Finding the Fourth Proportional to 496.51, 744.71 and 131.33

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Solution

The fourth proportional to 496.51, 744.71 and 131.33 is: 196.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    496.51 : 744.71 = 131.33 : x
  2. Step 2: Convert to fraction form
    496.51/744.71 = 131.33/x
  3. Step 3: Cross multiply
    496.51x = 744.71 × 131.33
  4. Step 4: Simplify right side
    496.51x = 97,803.68
  5. Step 5: Solve for x
    x = 97,803.68/496.51
  6. Step 6: Final answer
    x = 196.98

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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.