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Finding the Fourth Proportional to 250.94, 346.74 and 207.20

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Solution

The fourth proportional to 250.94, 346.74 and 207.20 is: 286.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.94 : 346.74 = 207.20 : x
  2. Step 2: Convert to fraction form
    250.94/346.74 = 207.20/x
  3. Step 3: Cross multiply
    250.94x = 346.74 × 207.20
  4. Step 4: Simplify right side
    250.94x = 71,845.05
  5. Step 5: Solve for x
    x = 71,845.05/250.94
  6. Step 6: Final answer
    x = 286.30

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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.