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Finding the Fourth Proportional to 559.01, 770.93 and 349.21

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Solution

The fourth proportional to 559.01, 770.93 and 349.21 is: 481.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.01 : 770.93 = 349.21 : x
  2. Step 2: Convert to fraction form
    559.01/770.93 = 349.21/x
  3. Step 3: Cross multiply
    559.01x = 770.93 × 349.21
  4. Step 4: Simplify right side
    559.01x = 269,212.61
  5. Step 5: Solve for x
    x = 269,212.61/559.01
  6. Step 6: Final answer
    x = 481.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.