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Finding the Fourth Proportional to 610.90, 843.03 and 377.89

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Solution

The fourth proportional to 610.90, 843.03 and 377.89 is: 521.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.90 : 843.03 = 377.89 : x
  2. Step 2: Convert to fraction form
    610.90/843.03 = 377.89/x
  3. Step 3: Cross multiply
    610.90x = 843.03 × 377.89
  4. Step 4: Simplify right side
    610.90x = 318,572.61
  5. Step 5: Solve for x
    x = 318,572.61/610.90
  6. Step 6: Final answer
    x = 521.48

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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.