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Finding the Fourth Proportional to 270.60, 403.93 and 251.36

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Solution

The fourth proportional to 270.60, 403.93 and 251.36 is: 375.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.60 : 403.93 = 251.36 : x
  2. Step 2: Convert to fraction form
    270.60/403.93 = 251.36/x
  3. Step 3: Cross multiply
    270.60x = 403.93 × 251.36
  4. Step 4: Simplify right side
    270.60x = 101,531.84
  5. Step 5: Solve for x
    x = 101,531.84/270.60
  6. Step 6: Final answer
    x = 375.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.