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Finding the Fourth Proportional to 271,857.80, 406,980.30 and 202,046.60

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Solution

The fourth proportional to 271,857.80, 406,980.30 and 202,046.60 is: 302,470.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,857.80 : 406,980.30 = 202,046.60 : x
  2. Step 2: Convert to fraction form
    271,857.80/406,980.30 = 202,046.60/x
  3. Step 3: Cross multiply
    271,857.80x = 406,980.30 × 202,046.60
  4. Step 4: Simplify right side
    271,857.80x = 82,228,985,881.98
  5. Step 5: Solve for x
    x = 82,228,985,881.98/271,857.80
  6. Step 6: Final answer
    x = 302,470.58

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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.