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Finding the Fourth Proportional to 377.37, 522.99 and 371.61

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Solution

The fourth proportional to 377.37, 522.99 and 371.61 is: 515.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.37 : 522.99 = 371.61 : x
  2. Step 2: Convert to fraction form
    377.37/522.99 = 371.61/x
  3. Step 3: Cross multiply
    377.37x = 522.99 × 371.61
  4. Step 4: Simplify right side
    377.37x = 194,348.31
  5. Step 5: Solve for x
    x = 194,348.31/377.37
  6. Step 6: Final answer
    x = 515.01

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.