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Finding the Fourth Proportional to 273.49, 374.59 and 258.55

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Solution

The fourth proportional to 273.49, 374.59 and 258.55 is: 354.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.49 : 374.59 = 258.55 : x
  2. Step 2: Convert to fraction form
    273.49/374.59 = 258.55/x
  3. Step 3: Cross multiply
    273.49x = 374.59 × 258.55
  4. Step 4: Simplify right side
    273.49x = 96,850.24
  5. Step 5: Solve for x
    x = 96,850.24/273.49
  6. Step 6: Final answer
    x = 354.13

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.