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Finding the Fourth Proportional to 377.64, 520.78 and 246.52

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Solution

The fourth proportional to 377.64, 520.78 and 246.52 is: 339.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.64 : 520.78 = 246.52 : x
  2. Step 2: Convert to fraction form
    377.64/520.78 = 246.52/x
  3. Step 3: Cross multiply
    377.64x = 520.78 × 246.52
  4. Step 4: Simplify right side
    377.64x = 128,382.69
  5. Step 5: Solve for x
    x = 128,382.69/377.64
  6. Step 6: Final answer
    x = 339.96

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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.