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Finding the Fourth Proportional to 451.02, 673.27 and 396.35

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Solution

The fourth proportional to 451.02, 673.27 and 396.35 is: 591.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.02 : 673.27 = 396.35 : x
  2. Step 2: Convert to fraction form
    451.02/673.27 = 396.35/x
  3. Step 3: Cross multiply
    451.02x = 673.27 × 396.35
  4. Step 4: Simplify right side
    451.02x = 266,845.22
  5. Step 5: Solve for x
    x = 266,845.22/451.02
  6. Step 6: Final answer
    x = 591.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.