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Finding the Fourth Proportional to 377.38, 561.12 and 362.80

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Solution

The fourth proportional to 377.38, 561.12 and 362.80 is: 539.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.38 : 561.12 = 362.80 : x
  2. Step 2: Convert to fraction form
    377.38/561.12 = 362.80/x
  3. Step 3: Cross multiply
    377.38x = 561.12 × 362.80
  4. Step 4: Simplify right side
    377.38x = 203,574.34
  5. Step 5: Solve for x
    x = 203,574.34/377.38
  6. Step 6: Final answer
    x = 539.44

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