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Finding the Fourth Proportional to 324,249.22, 485,377.26 and 276,419.53

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Solution

The fourth proportional to 324,249.22, 485,377.26 and 276,419.53 is: 413,779.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,249.22 : 485,377.26 = 276,419.53 : x
  2. Step 2: Convert to fraction form
    324,249.22/485,377.26 = 276,419.53/x
  3. Step 3: Cross multiply
    324,249.22x = 485,377.26 × 276,419.53
  4. Step 4: Simplify right side
    324,249.22x = 134,167,754,081.89
  5. Step 5: Solve for x
    x = 134,167,754,081.89/324,249.22
  6. Step 6: Final answer
    x = 413,779.73

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1.5x scale

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.