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Finding the Fourth Proportional to 213.16, 293.78 and 174.04

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Solution

The fourth proportional to 213.16, 293.78 and 174.04 is: 239.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    213.16 : 293.78 = 174.04 : x
  2. Step 2: Convert to fraction form
    213.16/293.78 = 174.04/x
  3. Step 3: Cross multiply
    213.16x = 293.78 × 174.04
  4. Step 4: Simplify right side
    213.16x = 51,129.47
  5. Step 5: Solve for x
    x = 51,129.47/213.16
  6. Step 6: Final answer
    x = 239.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.