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Finding the Fourth Proportional to 482.42, 665.49 and 335.18

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Solution

The fourth proportional to 482.42, 665.49 and 335.18 is: 462.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.42 : 665.49 = 335.18 : x
  2. Step 2: Convert to fraction form
    482.42/665.49 = 335.18/x
  3. Step 3: Cross multiply
    482.42x = 665.49 × 335.18
  4. Step 4: Simplify right side
    482.42x = 223,058.94
  5. Step 5: Solve for x
    x = 223,058.94/482.42
  6. Step 6: Final answer
    x = 462.37

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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.