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Finding the Fourth Proportional to 496.77, 744.62 and 253.46

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Solution

The fourth proportional to 496.77, 744.62 and 253.46 is: 379.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    496.77 : 744.62 = 253.46 : x
  2. Step 2: Convert to fraction form
    496.77/744.62 = 253.46/x
  3. Step 3: Cross multiply
    496.77x = 744.62 × 253.46
  4. Step 4: Simplify right side
    496.77x = 188,726.39
  5. Step 5: Solve for x
    x = 188,726.39/496.77
  6. Step 6: Final answer
    x = 379.91

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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.