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Finding the Fourth Proportional to 235.34, 351.45 and 232.80

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Solution

The fourth proportional to 235.34, 351.45 and 232.80 is: 347.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.34 : 351.45 = 232.80 : x
  2. Step 2: Convert to fraction form
    235.34/351.45 = 232.80/x
  3. Step 3: Cross multiply
    235.34x = 351.45 × 232.80
  4. Step 4: Simplify right side
    235.34x = 81,816.40
  5. Step 5: Solve for x
    x = 81,816.40/235.34
  6. Step 6: Final answer
    x = 347.65

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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.