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Finding the Fourth Proportional to 235.47, 354.02 and 230.61

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Solution

The fourth proportional to 235.47, 354.02 and 230.61 is: 346.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.47 : 354.02 = 230.61 : x
  2. Step 2: Convert to fraction form
    235.47/354.02 = 230.61/x
  3. Step 3: Cross multiply
    235.47x = 354.02 × 230.61
  4. Step 4: Simplify right side
    235.47x = 81,639.40
  5. Step 5: Solve for x
    x = 81,639.40/235.47
  6. Step 6: Final answer
    x = 346.71

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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.