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Finding the Fourth Proportional to 271,889.08, 407,212.40 and 129,833.85

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Solution

The fourth proportional to 271,889.08, 407,212.40 and 129,833.85 is: 194,454.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,889.08 : 407,212.40 = 129,833.85 : x
  2. Step 2: Convert to fraction form
    271,889.08/407,212.40 = 129,833.85/x
  3. Step 3: Cross multiply
    271,889.08x = 407,212.40 × 129,833.85
  4. Step 4: Simplify right side
    271,889.08x = 52,869,955,511.37
  5. Step 5: Solve for x
    x = 52,869,955,511.37/271,889.08
  6. Step 6: Final answer
    x = 194,454.14

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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.