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Finding the Fourth Proportional to 271,805.20, 407,707.80 and 271,805.20

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Solution

The fourth proportional to 271,805.20, 407,707.80 and 271,805.20 is: 407,707.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,805.20 : 407,707.80 = 271,805.20 : x
  2. Step 2: Convert to fraction form
    271,805.20/407,707.80 = 271,805.20/x
  3. Step 3: Cross multiply
    271,805.20x = 407,707.80 × 271,805.20
  4. Step 4: Simplify right side
    271,805.20x = 110,817,100,120.56
  5. Step 5: Solve for x
    x = 110,817,100,120.56/271,805.20
  6. Step 6: Final answer
    x = 407,707.80

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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.