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Finding the Fourth Proportional to 585.81, 878.82 and 169.40

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Solution

The fourth proportional to 585.81, 878.82 and 169.40 is: 254.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    585.81 : 878.82 = 169.40 : x
  2. Step 2: Convert to fraction form
    585.81/878.82 = 169.40/x
  3. Step 3: Cross multiply
    585.81x = 878.82 × 169.40
  4. Step 4: Simplify right side
    585.81x = 148,872.11
  5. Step 5: Solve for x
    x = 148,872.11/585.81
  6. Step 6: Final answer
    x = 254.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.