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Finding the Fourth Proportional to 273.52, 410.82 and 260.74

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Solution

The fourth proportional to 273.52, 410.82 and 260.74 is: 391.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.52 : 410.82 = 260.74 : x
  2. Step 2: Convert to fraction form
    273.52/410.82 = 260.74/x
  3. Step 3: Cross multiply
    273.52x = 410.82 × 260.74
  4. Step 4: Simplify right side
    273.52x = 107,117.21
  5. Step 5: Solve for x
    x = 107,117.21/273.52
  6. Step 6: Final answer
    x = 391.62

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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.