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Finding the Fourth Proportional to 271,704.78, 407,426.09 and 113,890.86

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Solution

The fourth proportional to 271,704.78, 407,426.09 and 113,890.86 is: 170,781.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,704.78 : 407,426.09 = 113,890.86 : x
  2. Step 2: Convert to fraction form
    271,704.78/407,426.09 = 113,890.86/x
  3. Step 3: Cross multiply
    271,704.78x = 407,426.09 × 113,890.86
  4. Step 4: Simplify right side
    271,704.78x = 46,402,107,207.08
  5. Step 5: Solve for x
    x = 46,402,107,207.08/271,704.78
  6. Step 6: Final answer
    x = 170,781.34

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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.