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Finding the Fourth Proportional to 271,858.70, 407,788.05 and 187,877.90

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Solution

The fourth proportional to 271,858.70, 407,788.05 and 187,877.90 is: 281,816.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,858.70 : 407,788.05 = 187,877.90 : x
  2. Step 2: Convert to fraction form
    271,858.70/407,788.05 = 187,877.90/x
  3. Step 3: Cross multiply
    271,858.70x = 407,788.05 × 187,877.90
  4. Step 4: Simplify right side
    271,858.70x = 76,614,362,479.10
  5. Step 5: Solve for x
    x = 76,614,362,479.10/271,858.70
  6. Step 6: Final answer
    x = 281,816.85

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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.