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Finding the Fourth Proportional to 373.99, 516.44 and 243.31

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Solution

The fourth proportional to 373.99, 516.44 and 243.31 is: 335.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.99 : 516.44 = 243.31 : x
  2. Step 2: Convert to fraction form
    373.99/516.44 = 243.31/x
  3. Step 3: Cross multiply
    373.99x = 516.44 × 243.31
  4. Step 4: Simplify right side
    373.99x = 125,655.02
  5. Step 5: Solve for x
    x = 125,655.02/373.99
  6. Step 6: Final answer
    x = 335.98

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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.