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Finding the Fourth Proportional to 446.90, 617.22 and 440.82

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Solution

The fourth proportional to 446.90, 617.22 and 440.82 is: 608.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.90 : 617.22 = 440.82 : x
  2. Step 2: Convert to fraction form
    446.90/617.22 = 440.82/x
  3. Step 3: Cross multiply
    446.90x = 617.22 × 440.82
  4. Step 4: Simplify right side
    446.90x = 272,082.92
  5. Step 5: Solve for x
    x = 272,082.92/446.90
  6. Step 6: Final answer
    x = 608.82

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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.