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Finding the Fourth Proportional to 445.86, 617.89 and 437.22

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Solution

The fourth proportional to 445.86, 617.89 and 437.22 is: 605.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.86 : 617.89 = 437.22 : x
  2. Step 2: Convert to fraction form
    445.86/617.89 = 437.22/x
  3. Step 3: Cross multiply
    445.86x = 617.89 × 437.22
  4. Step 4: Simplify right side
    445.86x = 270,153.87
  5. Step 5: Solve for x
    x = 270,153.87/445.86
  6. Step 6: Final answer
    x = 605.92

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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.