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Finding the Fourth Proportional to 254.41, 350.76 and 207.74

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Solution

The fourth proportional to 254.41, 350.76 and 207.74 is: 286.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.41 : 350.76 = 207.74 : x
  2. Step 2: Convert to fraction form
    254.41/350.76 = 207.74/x
  3. Step 3: Cross multiply
    254.41x = 350.76 × 207.74
  4. Step 4: Simplify right side
    254.41x = 72,865.13
  5. Step 5: Solve for x
    x = 72,865.13/254.41
  6. Step 6: Final answer
    x = 286.41

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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.