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Finding the Fourth Proportional to 335.02, 502.44 and 213.07

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Solution

The fourth proportional to 335.02, 502.44 and 213.07 is: 319.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.02 : 502.44 = 213.07 : x
  2. Step 2: Convert to fraction form
    335.02/502.44 = 213.07/x
  3. Step 3: Cross multiply
    335.02x = 502.44 × 213.07
  4. Step 4: Simplify right side
    335.02x = 107,054.89
  5. Step 5: Solve for x
    x = 107,054.89/335.02
  6. Step 6: Final answer
    x = 319.55

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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.