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Finding the Fourth Proportional to 346.91, 479.22 and 334.28

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Solution

The fourth proportional to 346.91, 479.22 and 334.28 is: 461.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.91 : 479.22 = 334.28 : x
  2. Step 2: Convert to fraction form
    346.91/479.22 = 334.28/x
  3. Step 3: Cross multiply
    346.91x = 479.22 × 334.28
  4. Step 4: Simplify right side
    346.91x = 160,194.32
  5. Step 5: Solve for x
    x = 160,194.32/346.91
  6. Step 6: Final answer
    x = 461.78

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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.