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Finding the Fourth Proportional to 482.16, 665.69 and 349.82

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Solution

The fourth proportional to 482.16, 665.69 and 349.82 is: 482.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.16 : 665.69 = 349.82 : x
  2. Step 2: Convert to fraction form
    482.16/665.69 = 349.82/x
  3. Step 3: Cross multiply
    482.16x = 665.69 × 349.82
  4. Step 4: Simplify right side
    482.16x = 232,871.68
  5. Step 5: Solve for x
    x = 232,871.68/482.16
  6. Step 6: Final answer
    x = 482.98

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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.