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Finding the Fourth Proportional to 296.89, 445.38 and 104.50

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Solution

The fourth proportional to 296.89, 445.38 and 104.50 is: 156.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.89 : 445.38 = 104.50 : x
  2. Step 2: Convert to fraction form
    296.89/445.38 = 104.50/x
  3. Step 3: Cross multiply
    296.89x = 445.38 × 104.50
  4. Step 4: Simplify right side
    296.89x = 46,542.21
  5. Step 5: Solve for x
    x = 46,542.21/296.89
  6. Step 6: Final answer
    x = 156.77

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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.