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Finding the Fourth Proportional to 624.17, 936.26 and 191.33

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Solution

The fourth proportional to 624.17, 936.26 and 191.33 is: 286.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.17 : 936.26 = 191.33 : x
  2. Step 2: Convert to fraction form
    624.17/936.26 = 191.33/x
  3. Step 3: Cross multiply
    624.17x = 936.26 × 191.33
  4. Step 4: Simplify right side
    624.17x = 179,128.99
  5. Step 5: Solve for x
    x = 179,128.99/624.17
  6. Step 6: Final answer
    x = 286.99

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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.