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Finding the Fourth Proportional to 271,535.70, 407,301.53 and 81,995.70

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Solution

The fourth proportional to 271,535.70, 407,301.53 and 81,995.70 is: 122,992.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,535.70 : 407,301.53 = 81,995.70 : x
  2. Step 2: Convert to fraction form
    271,535.70/407,301.53 = 81,995.70/x
  3. Step 3: Cross multiply
    271,535.70x = 407,301.53 × 81,995.70
  4. Step 4: Simplify right side
    271,535.70x = 33,396,973,653.44
  5. Step 5: Solve for x
    x = 33,396,973,653.44/271,535.70
  6. Step 6: Final answer
    x = 122,992.94

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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.