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Finding the Fourth Proportional to 293.95, 405.46 and 188.85

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Solution

The fourth proportional to 293.95, 405.46 and 188.85 is: 260.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.95 : 405.46 = 188.85 : x
  2. Step 2: Convert to fraction form
    293.95/405.46 = 188.85/x
  3. Step 3: Cross multiply
    293.95x = 405.46 × 188.85
  4. Step 4: Simplify right side
    293.95x = 76,571.12
  5. Step 5: Solve for x
    x = 76,571.12/293.95
  6. Step 6: Final answer
    x = 260.49

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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.