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Finding the Fourth Proportional to 368.07, 508.14 and 243.95

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Solution

The fourth proportional to 368.07, 508.14 and 243.95 is: 336.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.07 : 508.14 = 243.95 : x
  2. Step 2: Convert to fraction form
    368.07/508.14 = 243.95/x
  3. Step 3: Cross multiply
    368.07x = 508.14 × 243.95
  4. Step 4: Simplify right side
    368.07x = 123,958.21
  5. Step 5: Solve for x
    x = 123,958.21/368.07
  6. Step 6: Final answer
    x = 336.78

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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.