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Finding the Fourth Proportional to 377.19, 565.20 and 274.19

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Solution

The fourth proportional to 377.19, 565.20 and 274.19 is: 410.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.19 : 565.20 = 274.19 : x
  2. Step 2: Convert to fraction form
    377.19/565.20 = 274.19/x
  3. Step 3: Cross multiply
    377.19x = 565.20 × 274.19
  4. Step 4: Simplify right side
    377.19x = 154,969.36
  5. Step 5: Solve for x
    x = 154,969.36/377.19
  6. Step 6: Final answer
    x = 410.85

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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.