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Finding the Fourth Proportional to 590.76, 886.28 and 220.57

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Solution

The fourth proportional to 590.76, 886.28 and 220.57 is: 330.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.76 : 886.28 = 220.57 : x
  2. Step 2: Convert to fraction form
    590.76/886.28 = 220.57/x
  3. Step 3: Cross multiply
    590.76x = 886.28 × 220.57
  4. Step 4: Simplify right side
    590.76x = 195,486.78
  5. Step 5: Solve for x
    x = 195,486.78/590.76
  6. Step 6: Final answer
    x = 330.91

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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.