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Finding the Fourth Proportional to 271,028.43, 406,915.04 and 137,998.08

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Solution

The fourth proportional to 271,028.43, 406,915.04 and 137,998.08 is: 207,186.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,028.43 : 406,915.04 = 137,998.08 : x
  2. Step 2: Convert to fraction form
    271,028.43/406,915.04 = 137,998.08/x
  3. Step 3: Cross multiply
    271,028.43x = 406,915.04 × 137,998.08
  4. Step 4: Simplify right side
    271,028.43x = 56,153,494,588.12
  5. Step 5: Solve for x
    x = 56,153,494,588.12/271,028.43
  6. Step 6: Final answer
    x = 207,186.73

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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.