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Finding the Fourth Proportional to 251,876.20, 377,726.10 and 74,336.20

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Solution

The fourth proportional to 251,876.20, 377,726.10 and 74,336.20 is: 111,478.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,876.20 : 377,726.10 = 74,336.20 : x
  2. Step 2: Convert to fraction form
    251,876.20/377,726.10 = 74,336.20/x
  3. Step 3: Cross multiply
    251,876.20x = 377,726.10 × 74,336.20
  4. Step 4: Simplify right side
    251,876.20x = 28,078,722,914.82
  5. Step 5: Solve for x
    x = 28,078,722,914.82/251,876.20
  6. Step 6: Final answer
    x = 111,478.27

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.