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Finding the Fourth Proportional to 353.85, 527.60 and 336.21

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Solution

The fourth proportional to 353.85, 527.60 and 336.21 is: 501.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    353.85 : 527.60 = 336.21 : x
  2. Step 2: Convert to fraction form
    353.85/527.60 = 336.21/x
  3. Step 3: Cross multiply
    353.85x = 527.60 × 336.21
  4. Step 4: Simplify right side
    353.85x = 177,384.40
  5. Step 5: Solve for x
    x = 177,384.40/353.85
  6. Step 6: Final answer
    x = 501.30

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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.