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Finding the Fourth Proportional to 271,316.20, 406,196.70 and 263,540.20

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Solution

The fourth proportional to 271,316.20, 406,196.70 and 263,540.20 is: 394,554.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,316.20 : 406,196.70 = 263,540.20 : x
  2. Step 2: Convert to fraction form
    271,316.20/406,196.70 = 263,540.20/x
  3. Step 3: Cross multiply
    271,316.20x = 406,196.70 × 263,540.20
  4. Step 4: Simplify right side
    271,316.20x = 107,049,159,557.34
  5. Step 5: Solve for x
    x = 107,049,159,557.34/271,316.20
  6. Step 6: Final answer
    x = 394,554.99

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1.5x scale

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.