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Finding the Fourth Proportional to 296.74, 445.12 and 166.72

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Solution

The fourth proportional to 296.74, 445.12 and 166.72 is: 250.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.74 : 445.12 = 166.72 : x
  2. Step 2: Convert to fraction form
    296.74/445.12 = 166.72/x
  3. Step 3: Cross multiply
    296.74x = 445.12 × 166.72
  4. Step 4: Simplify right side
    296.74x = 74,210.41
  5. Step 5: Solve for x
    x = 74,210.41/296.74
  6. Step 6: Final answer
    x = 250.09

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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.