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Finding the Fourth Proportional to 637.53, 879.83 and 357.75

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Solution

The fourth proportional to 637.53, 879.83 and 357.75 is: 493.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.53 : 879.83 = 357.75 : x
  2. Step 2: Convert to fraction form
    637.53/879.83 = 357.75/x
  3. Step 3: Cross multiply
    637.53x = 879.83 × 357.75
  4. Step 4: Simplify right side
    637.53x = 314,757.39
  5. Step 5: Solve for x
    x = 314,757.39/637.53
  6. Step 6: Final answer
    x = 493.71

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.