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Finding the Fourth Proportional to 373.95, 515.77 and 249.57

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Solution

The fourth proportional to 373.95, 515.77 and 249.57 is: 344.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.95 : 515.77 = 249.57 : x
  2. Step 2: Convert to fraction form
    373.95/515.77 = 249.57/x
  3. Step 3: Cross multiply
    373.95x = 515.77 × 249.57
  4. Step 4: Simplify right side
    373.95x = 128,719.37
  5. Step 5: Solve for x
    x = 128,719.37/373.95
  6. Step 6: Final answer
    x = 344.21

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