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Finding the Fourth Proportional to 452.96, 625.44 and 354.56

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Solution

The fourth proportional to 452.96, 625.44 and 354.56 is: 489.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.96 : 625.44 = 354.56 : x
  2. Step 2: Convert to fraction form
    452.96/625.44 = 354.56/x
  3. Step 3: Cross multiply
    452.96x = 625.44 × 354.56
  4. Step 4: Simplify right side
    452.96x = 221,756.01
  5. Step 5: Solve for x
    x = 221,756.01/452.96
  6. Step 6: Final answer
    x = 489.57

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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.