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Finding the Fourth Proportional to 371.90, 554.68 and 333.02

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Solution

The fourth proportional to 371.90, 554.68 and 333.02 is: 496.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.90 : 554.68 = 333.02 : x
  2. Step 2: Convert to fraction form
    371.90/554.68 = 333.02/x
  3. Step 3: Cross multiply
    371.90x = 554.68 × 333.02
  4. Step 4: Simplify right side
    371.90x = 184,719.53
  5. Step 5: Solve for x
    x = 184,719.53/371.90
  6. Step 6: Final answer
    x = 496.69

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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.