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Finding the Fourth Proportional to 373.70, 515.57 and 249.23

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Solution

The fourth proportional to 373.70, 515.57 and 249.23 is: 343.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.70 : 515.57 = 249.23 : x
  2. Step 2: Convert to fraction form
    373.70/515.57 = 249.23/x
  3. Step 3: Cross multiply
    373.70x = 515.57 × 249.23
  4. Step 4: Simplify right side
    373.70x = 128,495.55
  5. Step 5: Solve for x
    x = 128,495.55/373.70
  6. Step 6: Final answer
    x = 343.84

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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.