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Finding the Fourth Proportional to 271,855.56, 407,679.42 and 89,443.92

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Solution

The fourth proportional to 271,855.56, 407,679.42 and 89,443.92 is: 134,131.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,855.56 : 407,679.42 = 89,443.92 : x
  2. Step 2: Convert to fraction form
    271,855.56/407,679.42 = 89,443.92/x
  3. Step 3: Cross multiply
    271,855.56x = 407,679.42 × 89,443.92
  4. Step 4: Simplify right side
    271,855.56x = 36,464,445,428.13
  5. Step 5: Solve for x
    x = 36,464,445,428.13/271,855.56
  6. Step 6: Final answer
    x = 134,131.69

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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.