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Finding the Fourth Proportional to 296.57, 445.08 and 193.83

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Solution

The fourth proportional to 296.57, 445.08 and 193.83 is: 290.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.57 : 445.08 = 193.83 : x
  2. Step 2: Convert to fraction form
    296.57/445.08 = 193.83/x
  3. Step 3: Cross multiply
    296.57x = 445.08 × 193.83
  4. Step 4: Simplify right side
    296.57x = 86,268.91
  5. Step 5: Solve for x
    x = 86,268.91/296.57
  6. Step 6: Final answer
    x = 290.89

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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.