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Finding the Fourth Proportional to 271,532.31, 407,596.43 and 215,731.11

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Solution

The fourth proportional to 271,532.31, 407,596.43 and 215,731.11 is: 323,833.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,532.31 : 407,596.43 = 215,731.11 : x
  2. Step 2: Convert to fraction form
    271,532.31/407,596.43 = 215,731.11/x
  3. Step 3: Cross multiply
    271,532.31x = 407,596.43 × 215,731.11
  4. Step 4: Simplify right side
    271,532.31x = 87,931,229,197.28
  5. Step 5: Solve for x
    x = 87,931,229,197.28/271,532.31
  6. Step 6: Final answer
    x = 323,833.39

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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.