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Finding the Fourth Proportional to 251,861.40, 377,791.68 and 172,735.74

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Solution

The fourth proportional to 251,861.40, 377,791.68 and 172,735.74 is: 259,103.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,861.40 : 377,791.68 = 172,735.74 : x
  2. Step 2: Convert to fraction form
    251,861.40/377,791.68 = 172,735.74/x
  3. Step 3: Cross multiply
    251,861.40x = 377,791.68 × 172,735.74
  4. Step 4: Simplify right side
    251,861.40x = 65,258,125,410.64
  5. Step 5: Solve for x
    x = 65,258,125,410.64/251,861.40
  6. Step 6: Final answer
    x = 259,103.32

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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.