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Finding the Fourth Proportional to 586.14, 878.59 and 220.77

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Solution

The fourth proportional to 586.14, 878.59 and 220.77 is: 330.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    586.14 : 878.59 = 220.77 : x
  2. Step 2: Convert to fraction form
    586.14/878.59 = 220.77/x
  3. Step 3: Cross multiply
    586.14x = 878.59 × 220.77
  4. Step 4: Simplify right side
    586.14x = 193,966.31
  5. Step 5: Solve for x
    x = 193,966.31/586.14
  6. Step 6: Final answer
    x = 330.92

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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.