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Finding the Fourth Proportional to 463.93, 696.06 and 220.66

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Solution

The fourth proportional to 463.93, 696.06 and 220.66 is: 331.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    463.93 : 696.06 = 220.66 : x
  2. Step 2: Convert to fraction form
    463.93/696.06 = 220.66/x
  3. Step 3: Cross multiply
    463.93x = 696.06 × 220.66
  4. Step 4: Simplify right side
    463.93x = 153,590.86
  5. Step 5: Solve for x
    x = 153,590.86/463.93
  6. Step 6: Final answer
    x = 331.07

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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.