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Finding the Fourth Proportional to 309,524.36, 426,055.56 and 271,193.54

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Solution

The fourth proportional to 309,524.36, 426,055.56 and 271,193.54 is: 373,293.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,524.36 : 426,055.56 = 271,193.54 : x
  2. Step 2: Convert to fraction form
    309,524.36/426,055.56 = 271,193.54/x
  3. Step 3: Cross multiply
    309,524.36x = 426,055.56 × 271,193.54
  4. Step 4: Simplify right side
    309,524.36x = 115,543,515,553.08
  5. Step 5: Solve for x
    x = 115,543,515,553.08/309,524.36
  6. Step 6: Final answer
    x = 373,293.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.