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Finding the Fourth Proportional to 271,945.80, 407,112.30 and 202,134.60

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Solution

The fourth proportional to 271,945.80, 407,112.30 and 202,134.60 is: 302,602.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,945.80 : 407,112.30 = 202,134.60 : x
  2. Step 2: Convert to fraction form
    271,945.80/407,112.30 = 202,134.60/x
  3. Step 3: Cross multiply
    271,945.80x = 407,112.30 × 202,134.60
  4. Step 4: Simplify right side
    271,945.80x = 82,291,481,915.58
  5. Step 5: Solve for x
    x = 82,291,481,915.58/271,945.80
  6. Step 6: Final answer
    x = 302,602.51

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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.