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Finding the Fourth Proportional to 253,930.14, 380,847.02 and 127,536.53

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Solution

The fourth proportional to 253,930.14, 380,847.02 and 127,536.53 is: 191,280.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,930.14 : 380,847.02 = 127,536.53 : x
  2. Step 2: Convert to fraction form
    253,930.14/380,847.02 = 127,536.53/x
  3. Step 3: Cross multiply
    253,930.14x = 380,847.02 × 127,536.53
  4. Step 4: Simplify right side
    253,930.14x = 48,571,904,849.72
  5. Step 5: Solve for x
    x = 48,571,904,849.72/253,930.14
  6. Step 6: Final answer
    x = 191,280.58

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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.