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Finding the Fourth Proportional to 585.18, 806.67 and 410.22

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Solution

The fourth proportional to 585.18, 806.67 and 410.22 is: 565.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    585.18 : 806.67 = 410.22 : x
  2. Step 2: Convert to fraction form
    585.18/806.67 = 410.22/x
  3. Step 3: Cross multiply
    585.18x = 806.67 × 410.22
  4. Step 4: Simplify right side
    585.18x = 330,912.17
  5. Step 5: Solve for x
    x = 330,912.17/585.18
  6. Step 6: Final answer
    x = 565.49

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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.