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Finding the Fourth Proportional to 194.23, 291.08 and 72.37

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Solution

The fourth proportional to 194.23, 291.08 and 72.37 is: 108.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.23 : 291.08 = 72.37 : x
  2. Step 2: Convert to fraction form
    194.23/291.08 = 72.37/x
  3. Step 3: Cross multiply
    194.23x = 291.08 × 72.37
  4. Step 4: Simplify right side
    194.23x = 21,064.00
  5. Step 5: Solve for x
    x = 21,064.00/194.23
  6. Step 6: Final answer
    x = 108.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.