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Finding the Fourth Proportional to 233.87, 349.49 and 187.99

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Solution

The fourth proportional to 233.87, 349.49 and 187.99 is: 280.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.87 : 349.49 = 187.99 : x
  2. Step 2: Convert to fraction form
    233.87/349.49 = 187.99/x
  3. Step 3: Cross multiply
    233.87x = 349.49 × 187.99
  4. Step 4: Simplify right side
    233.87x = 65,700.22
  5. Step 5: Solve for x
    x = 65,700.22/233.87
  6. Step 6: Final answer
    x = 280.93

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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.