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Finding the Fourth Proportional to 342.94, 472.94 and 232.58

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Solution

The fourth proportional to 342.94, 472.94 and 232.58 is: 320.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    342.94 : 472.94 = 232.58 : x
  2. Step 2: Convert to fraction form
    342.94/472.94 = 232.58/x
  3. Step 3: Cross multiply
    342.94x = 472.94 × 232.58
  4. Step 4: Simplify right side
    342.94x = 109,996.39
  5. Step 5: Solve for x
    x = 109,996.39/342.94
  6. Step 6: Final answer
    x = 320.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.