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Finding the Fourth Proportional to 377.52, 561.54 and 364.20

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Solution

The fourth proportional to 377.52, 561.54 and 364.20 is: 541.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.52 : 561.54 = 364.20 : x
  2. Step 2: Convert to fraction form
    377.52/561.54 = 364.20/x
  3. Step 3: Cross multiply
    377.52x = 561.54 × 364.20
  4. Step 4: Simplify right side
    377.52x = 204,512.87
  5. Step 5: Solve for x
    x = 204,512.87/377.52
  6. Step 6: Final answer
    x = 541.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.