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Finding the Fourth Proportional to 586.01, 879.24 and 220.89

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Solution

The fourth proportional to 586.01, 879.24 and 220.89 is: 331.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    586.01 : 879.24 = 220.89 : x
  2. Step 2: Convert to fraction form
    586.01/879.24 = 220.89/x
  3. Step 3: Cross multiply
    586.01x = 879.24 × 220.89
  4. Step 4: Simplify right side
    586.01x = 194,215.32
  5. Step 5: Solve for x
    x = 194,215.32/586.01
  6. Step 6: Final answer
    x = 331.42

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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.