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Finding the Fourth Proportional to 605.16, 836.14 and 481.74

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Solution

The fourth proportional to 605.16, 836.14 and 481.74 is: 665.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.16 : 836.14 = 481.74 : x
  2. Step 2: Convert to fraction form
    605.16/836.14 = 481.74/x
  3. Step 3: Cross multiply
    605.16x = 836.14 × 481.74
  4. Step 4: Simplify right side
    605.16x = 402,802.08
  5. Step 5: Solve for x
    x = 402,802.08/605.16
  6. Step 6: Final answer
    x = 665.61

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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.