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Finding the Fourth Proportional to 453.75, 624.81 and 443.53

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Solution

The fourth proportional to 453.75, 624.81 and 443.53 is: 610.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.75 : 624.81 = 443.53 : x
  2. Step 2: Convert to fraction form
    453.75/624.81 = 443.53/x
  3. Step 3: Cross multiply
    453.75x = 624.81 × 443.53
  4. Step 4: Simplify right side
    453.75x = 277,121.98
  5. Step 5: Solve for x
    x = 277,121.98/453.75
  6. Step 6: Final answer
    x = 610.74

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Why These Related Problems?

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