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Finding the Fourth Proportional to 252,768.71, 378,930.91 and 103,134.98

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Solution

The fourth proportional to 252,768.71, 378,930.91 and 103,134.98 is: 154,611.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,768.71 : 378,930.91 = 103,134.98 : x
  2. Step 2: Convert to fraction form
    252,768.71/378,930.91 = 103,134.98/x
  3. Step 3: Cross multiply
    252,768.71x = 378,930.91 × 103,134.98
  4. Step 4: Simplify right side
    252,768.71x = 39,081,029,671.74
  5. Step 5: Solve for x
    x = 39,081,029,671.74/252,768.71
  6. Step 6: Final answer
    x = 154,611.82

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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.