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Finding the Fourth Proportional to 233.94, 350.13 and 142.19

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Solution

The fourth proportional to 233.94, 350.13 and 142.19 is: 212.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.94 : 350.13 = 142.19 : x
  2. Step 2: Convert to fraction form
    233.94/350.13 = 142.19/x
  3. Step 3: Cross multiply
    233.94x = 350.13 × 142.19
  4. Step 4: Simplify right side
    233.94x = 49,783.23
  5. Step 5: Solve for x
    x = 49,783.23/233.94
  6. Step 6: Final answer
    x = 212.80

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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.