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Finding the Fourth Proportional to 482.60, 665.22 and 461

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Solution

The fourth proportional to 482.60, 665.22 and 461 is: 635.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.60 : 665.22 = 461 : x
  2. Step 2: Convert to fraction form
    482.60/665.22 = 461/x
  3. Step 3: Cross multiply
    482.60x = 665.22 × 461
  4. Step 4: Simplify right side
    482.60x = 306,666.42
  5. Step 5: Solve for x
    x = 306,666.42/482.60
  6. Step 6: Final answer
    x = 635.45

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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.