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Finding the Fourth Proportional to 377.39, 561.83 and 372.26

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Solution

The fourth proportional to 377.39, 561.83 and 372.26 is: 554.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.39 : 561.83 = 372.26 : x
  2. Step 2: Convert to fraction form
    377.39/561.83 = 372.26/x
  3. Step 3: Cross multiply
    377.39x = 561.83 × 372.26
  4. Step 4: Simplify right side
    377.39x = 209,142.17
  5. Step 5: Solve for x
    x = 209,142.17/377.39
  6. Step 6: Final answer
    x = 554.19

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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.