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Finding the Fourth Proportional to 446.89, 617.74 and 372.77

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Solution

The fourth proportional to 446.89, 617.74 and 372.77 is: 515.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.89 : 617.74 = 372.77 : x
  2. Step 2: Convert to fraction form
    446.89/617.74 = 372.77/x
  3. Step 3: Cross multiply
    446.89x = 617.74 × 372.77
  4. Step 4: Simplify right side
    446.89x = 230,275.55
  5. Step 5: Solve for x
    x = 230,275.55/446.89
  6. Step 6: Final answer
    x = 515.29

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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.