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Finding the Fourth Proportional to 372.60, 561.74 and 367.94

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Solution

The fourth proportional to 372.60, 561.74 and 367.94 is: 554.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.60 : 561.74 = 367.94 : x
  2. Step 2: Convert to fraction form
    372.60/561.74 = 367.94/x
  3. Step 3: Cross multiply
    372.60x = 561.74 × 367.94
  4. Step 4: Simplify right side
    372.60x = 206,686.18
  5. Step 5: Solve for x
    x = 206,686.18/372.60
  6. Step 6: Final answer
    x = 554.71

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.