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Finding the Fourth Proportional to 251,778.97, 377,705.31 and 74,262.88

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Solution

The fourth proportional to 251,778.97, 377,705.31 and 74,262.88 is: 111,405.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,778.97 : 377,705.31 = 74,262.88 : x
  2. Step 2: Convert to fraction form
    251,778.97/377,705.31 = 74,262.88/x
  3. Step 3: Cross multiply
    251,778.97x = 377,705.31 × 74,262.88
  4. Step 4: Simplify right side
    251,778.97x = 28,049,484,111.89
  5. Step 5: Solve for x
    x = 28,049,484,111.89/251,778.97
  6. Step 6: Final answer
    x = 111,405.19

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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.