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Finding the Fourth Proportional to 450.50, 620.34 and 440.27

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Solution

The fourth proportional to 450.50, 620.34 and 440.27 is: 606.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.50 : 620.34 = 440.27 : x
  2. Step 2: Convert to fraction form
    450.50/620.34 = 440.27/x
  3. Step 3: Cross multiply
    450.50x = 620.34 × 440.27
  4. Step 4: Simplify right side
    450.50x = 273,117.14
  5. Step 5: Solve for x
    x = 273,117.14/450.50
  6. Step 6: Final answer
    x = 606.26

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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.