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Finding the Fourth Proportional to 377.92, 521.38 and 246.88

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Solution

The fourth proportional to 377.92, 521.38 and 246.88 is: 340.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.92 : 521.38 = 246.88 : x
  2. Step 2: Convert to fraction form
    377.92/521.38 = 246.88/x
  3. Step 3: Cross multiply
    377.92x = 521.38 × 246.88
  4. Step 4: Simplify right side
    377.92x = 128,718.29
  5. Step 5: Solve for x
    x = 128,718.29/377.92
  6. Step 6: Final answer
    x = 340.60

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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.