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Finding the Fourth Proportional to 376.63, 561.91 and 335.59

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Solution

The fourth proportional to 376.63, 561.91 and 335.59 is: 500.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.63 : 561.91 = 335.59 : x
  2. Step 2: Convert to fraction form
    376.63/561.91 = 335.59/x
  3. Step 3: Cross multiply
    376.63x = 561.91 × 335.59
  4. Step 4: Simplify right side
    376.63x = 188,571.38
  5. Step 5: Solve for x
    x = 188,571.38/376.63
  6. Step 6: Final answer
    x = 500.68

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.