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Finding the Fourth Proportional to 270.02, 405.48 and 270.02

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Solution

The fourth proportional to 270.02, 405.48 and 270.02 is: 405.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.02 : 405.48 = 270.02 : x
  2. Step 2: Convert to fraction form
    270.02/405.48 = 270.02/x
  3. Step 3: Cross multiply
    270.02x = 405.48 × 270.02
  4. Step 4: Simplify right side
    270.02x = 109,485.68
  5. Step 5: Solve for x
    x = 109,485.68/270.02
  6. Step 6: Final answer
    x = 405.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.