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Finding the Fourth Proportional to 372.18, 554.89 and 362.56

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Solution

The fourth proportional to 372.18, 554.89 and 362.56 is: 540.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.18 : 554.89 = 362.56 : x
  2. Step 2: Convert to fraction form
    372.18/554.89 = 362.56/x
  3. Step 3: Cross multiply
    372.18x = 554.89 × 362.56
  4. Step 4: Simplify right side
    372.18x = 201,180.92
  5. Step 5: Solve for x
    x = 201,180.92/372.18
  6. Step 6: Final answer
    x = 540.55

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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.