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Finding the Fourth Proportional to 335.67, 502.74 and 213.66

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Solution

The fourth proportional to 335.67, 502.74 and 213.66 is: 320.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.67 : 502.74 = 213.66 : x
  2. Step 2: Convert to fraction form
    335.67/502.74 = 213.66/x
  3. Step 3: Cross multiply
    335.67x = 502.74 × 213.66
  4. Step 4: Simplify right side
    335.67x = 107,415.43
  5. Step 5: Solve for x
    x = 107,415.43/335.67
  6. Step 6: Final answer
    x = 320.00

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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.