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Finding the Fourth Proportional to 271,618.40, 407,427.60 and 201,634.40

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Solution

The fourth proportional to 271,618.40, 407,427.60 and 201,634.40 is: 302,451.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,618.40 : 407,427.60 = 201,634.40 : x
  2. Step 2: Convert to fraction form
    271,618.40/407,427.60 = 201,634.40/x
  3. Step 3: Cross multiply
    271,618.40x = 407,427.60 × 201,634.40
  4. Step 4: Simplify right side
    271,618.40x = 82,151,419,669.44
  5. Step 5: Solve for x
    x = 82,151,419,669.44/271,618.40
  6. Step 6: Final answer
    x = 302,451.60

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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.