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Finding the Fourth Proportional to 377.47, 520.71 and 246.55

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Solution

The fourth proportional to 377.47, 520.71 and 246.55 is: 340.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.47 : 520.71 = 246.55 : x
  2. Step 2: Convert to fraction form
    377.47/520.71 = 246.55/x
  3. Step 3: Cross multiply
    377.47x = 520.71 × 246.55
  4. Step 4: Simplify right side
    377.47x = 128,381.05
  5. Step 5: Solve for x
    x = 128,381.05/377.47
  6. Step 6: Final answer
    x = 340.11

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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.