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Finding the Fourth Proportional to 394.33, 543.50 and 295.92

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Solution

The fourth proportional to 394.33, 543.50 and 295.92 is: 407.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    394.33 : 543.50 = 295.92 : x
  2. Step 2: Convert to fraction form
    394.33/543.50 = 295.92/x
  3. Step 3: Cross multiply
    394.33x = 543.50 × 295.92
  4. Step 4: Simplify right side
    394.33x = 160,828.32
  5. Step 5: Solve for x
    x = 160,828.32/394.33
  6. Step 6: Final answer
    x = 407.85

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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.