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Finding the Fourth Proportional to 273.86, 410.32 and 165.42

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Solution

The fourth proportional to 273.86, 410.32 and 165.42 is: 247.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.86 : 410.32 = 165.42 : x
  2. Step 2: Convert to fraction form
    273.86/410.32 = 165.42/x
  3. Step 3: Cross multiply
    273.86x = 410.32 × 165.42
  4. Step 4: Simplify right side
    273.86x = 67,875.13
  5. Step 5: Solve for x
    x = 67,875.13/273.86
  6. Step 6: Final answer
    x = 247.85

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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.