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Finding the Fourth Proportional to 585.91, 878.83 and 220.67

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Solution

The fourth proportional to 585.91, 878.83 and 220.67 is: 330.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    585.91 : 878.83 = 220.67 : x
  2. Step 2: Convert to fraction form
    585.91/878.83 = 220.67/x
  3. Step 3: Cross multiply
    585.91x = 878.83 × 220.67
  4. Step 4: Simplify right side
    585.91x = 193,927.02
  5. Step 5: Solve for x
    x = 193,927.02/585.91
  6. Step 6: Final answer
    x = 330.99

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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.