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Finding the Fourth Proportional to 373.58, 559.48 and 199.81

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Solution

The fourth proportional to 373.58, 559.48 and 199.81 is: 299.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.58 : 559.48 = 199.81 : x
  2. Step 2: Convert to fraction form
    373.58/559.48 = 199.81/x
  3. Step 3: Cross multiply
    373.58x = 559.48 × 199.81
  4. Step 4: Simplify right side
    373.58x = 111,787.80
  5. Step 5: Solve for x
    x = 111,787.80/373.58
  6. Step 6: Final answer
    x = 299.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.