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Finding the Fourth Proportional to 439.98, 606.74 and 335.06

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Solution

The fourth proportional to 439.98, 606.74 and 335.06 is: 462.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.98 : 606.74 = 335.06 : x
  2. Step 2: Convert to fraction form
    439.98/606.74 = 335.06/x
  3. Step 3: Cross multiply
    439.98x = 606.74 × 335.06
  4. Step 4: Simplify right side
    439.98x = 203,294.30
  5. Step 5: Solve for x
    x = 203,294.30/439.98
  6. Step 6: Final answer
    x = 462.05

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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.