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Finding the Fourth Proportional to 355.70, 490.50 and 334.52

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Solution

The fourth proportional to 355.70, 490.50 and 334.52 is: 461.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.70 : 490.50 = 334.52 : x
  2. Step 2: Convert to fraction form
    355.70/490.50 = 334.52/x
  3. Step 3: Cross multiply
    355.70x = 490.50 × 334.52
  4. Step 4: Simplify right side
    355.70x = 164,082.06
  5. Step 5: Solve for x
    x = 164,082.06/355.70
  6. Step 6: Final answer
    x = 461.29

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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.