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Finding the Fourth Proportional to 372.53, 514.50 and 290.62

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Solution

The fourth proportional to 372.53, 514.50 and 290.62 is: 401.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.53 : 514.50 = 290.62 : x
  2. Step 2: Convert to fraction form
    372.53/514.50 = 290.62/x
  3. Step 3: Cross multiply
    372.53x = 514.50 × 290.62
  4. Step 4: Simplify right side
    372.53x = 149,519.96
  5. Step 5: Solve for x
    x = 149,519.96/372.53
  6. Step 6: Final answer
    x = 401.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.