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Finding the Fourth Proportional to 353.70, 530.55 and 334.80

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Solution

The fourth proportional to 353.70, 530.55 and 334.80 is: 502.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    353.70 : 530.55 = 334.80 : x
  2. Step 2: Convert to fraction form
    353.70/530.55 = 334.80/x
  3. Step 3: Cross multiply
    353.70x = 530.55 × 334.80
  4. Step 4: Simplify right side
    353.70x = 177,628.14
  5. Step 5: Solve for x
    x = 177,628.14/353.70
  6. Step 6: Final answer
    x = 502.20

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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.