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Finding the Fourth Proportional to 377.43, 519.80 and 369.38

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Solution

The fourth proportional to 377.43, 519.80 and 369.38 is: 508.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.43 : 519.80 = 369.38 : x
  2. Step 2: Convert to fraction form
    377.43/519.80 = 369.38/x
  3. Step 3: Cross multiply
    377.43x = 519.80 × 369.38
  4. Step 4: Simplify right side
    377.43x = 191,999.28
  5. Step 5: Solve for x
    x = 191,999.28/377.43
  6. Step 6: Final answer
    x = 508.70

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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.