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Finding the Fourth Proportional to 496.61, 745.23 and 291.58

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Solution

The fourth proportional to 496.61, 745.23 and 291.58 is: 437.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    496.61 : 745.23 = 291.58 : x
  2. Step 2: Convert to fraction form
    496.61/745.23 = 291.58/x
  3. Step 3: Cross multiply
    496.61x = 745.23 × 291.58
  4. Step 4: Simplify right side
    496.61x = 217,297.59
  5. Step 5: Solve for x
    x = 217,297.59/496.61
  6. Step 6: Final answer
    x = 437.56

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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.