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Finding the Fourth Proportional to 271,379.51, 407,057.50 and 91,453.05

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Solution

The fourth proportional to 271,379.51, 407,057.50 and 91,453.05 is: 137,175.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,379.51 : 407,057.50 = 91,453.05 : x
  2. Step 2: Convert to fraction form
    271,379.51/407,057.50 = 91,453.05/x
  3. Step 3: Cross multiply
    271,379.51x = 407,057.50 × 91,453.05
  4. Step 4: Simplify right side
    271,379.51x = 37,226,650,014.69
  5. Step 5: Solve for x
    x = 37,226,650,014.69/271,379.51
  6. Step 6: Final answer
    x = 137,175.61

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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.