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Finding the Fourth Proportional to 451.87, 626.50 and 427.26

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Solution

The fourth proportional to 451.87, 626.50 and 427.26 is: 592.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.87 : 626.50 = 427.26 : x
  2. Step 2: Convert to fraction form
    451.87/626.50 = 427.26/x
  3. Step 3: Cross multiply
    451.87x = 626.50 × 427.26
  4. Step 4: Simplify right side
    451.87x = 267,678.39
  5. Step 5: Solve for x
    x = 267,678.39/451.87
  6. Step 6: Final answer
    x = 592.38

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.