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Finding the Fourth Proportional to 270.08, 372.28 and 259.28

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Solution

The fourth proportional to 270.08, 372.28 and 259.28 is: 357.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.08 : 372.28 = 259.28 : x
  2. Step 2: Convert to fraction form
    270.08/372.28 = 259.28/x
  3. Step 3: Cross multiply
    270.08x = 372.28 × 259.28
  4. Step 4: Simplify right side
    270.08x = 96,524.76
  5. Step 5: Solve for x
    x = 96,524.76/270.08
  6. Step 6: Final answer
    x = 357.39

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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.