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Finding the Fourth Proportional to 293.36, 405.17 and 188.43

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Solution

The fourth proportional to 293.36, 405.17 and 188.43 is: 260.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.36 : 405.17 = 188.43 : x
  2. Step 2: Convert to fraction form
    293.36/405.17 = 188.43/x
  3. Step 3: Cross multiply
    293.36x = 405.17 × 188.43
  4. Step 4: Simplify right side
    293.36x = 76,344.43
  5. Step 5: Solve for x
    x = 76,344.43/293.36
  6. Step 6: Final answer
    x = 260.25

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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.