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Finding the Fourth Proportional to 611.88, 844.47 and 363.17

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Solution

The fourth proportional to 611.88, 844.47 and 363.17 is: 501.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    611.88 : 844.47 = 363.17 : x
  2. Step 2: Convert to fraction form
    611.88/844.47 = 363.17/x
  3. Step 3: Cross multiply
    611.88x = 844.47 × 363.17
  4. Step 4: Simplify right side
    611.88x = 306,681.95
  5. Step 5: Solve for x
    x = 306,681.95/611.88
  6. Step 6: Final answer
    x = 501.21

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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.