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Finding the Fourth Proportional to 377.37, 565.70 and 261.54

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Solution

The fourth proportional to 377.37, 565.70 and 261.54 is: 392.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.37 : 565.70 = 261.54 : x
  2. Step 2: Convert to fraction form
    377.37/565.70 = 261.54/x
  3. Step 3: Cross multiply
    377.37x = 565.70 × 261.54
  4. Step 4: Simplify right side
    377.37x = 147,951.87
  5. Step 5: Solve for x
    x = 147,951.87/377.37
  6. Step 6: Final answer
    x = 392.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.