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Finding the Fourth Proportional to 270,372.86, 405,554.82 and 80,833.66

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Solution

The fourth proportional to 270,372.86, 405,554.82 and 80,833.66 is: 121,249.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,372.86 : 405,554.82 = 80,833.66 : x
  2. Step 2: Convert to fraction form
    270,372.86/405,554.82 = 80,833.66/x
  3. Step 3: Cross multiply
    270,372.86x = 405,554.82 × 80,833.66
  4. Step 4: Simplify right side
    270,372.86x = 32,782,480,431.24
  5. Step 5: Solve for x
    x = 32,782,480,431.24/270,372.86
  6. Step 6: Final answer
    x = 121,249.15

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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.