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Finding the Fourth Proportional to 453.53, 625.50 and 305.97

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Solution

The fourth proportional to 453.53, 625.50 and 305.97 is: 421.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.53 : 625.50 = 305.97 : x
  2. Step 2: Convert to fraction form
    453.53/625.50 = 305.97/x
  3. Step 3: Cross multiply
    453.53x = 625.50 × 305.97
  4. Step 4: Simplify right side
    453.53x = 191,384.24
  5. Step 5: Solve for x
    x = 191,384.24/453.53
  6. Step 6: Final answer
    x = 421.99

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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.