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Finding the Fourth Proportional to 251,321.10, 376,945.20 and 73,809.60

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Solution

The fourth proportional to 251,321.10, 376,945.20 and 73,809.60 is: 110,703.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,321.10 : 376,945.20 = 73,809.60 : x
  2. Step 2: Convert to fraction form
    251,321.10/376,945.20 = 73,809.60/x
  3. Step 3: Cross multiply
    251,321.10x = 376,945.20 × 73,809.60
  4. Step 4: Simplify right side
    251,321.10x = 27,822,174,433.92
  5. Step 5: Solve for x
    x = 27,822,174,433.92/251,321.10
  6. Step 6: Final answer
    x = 110,703.70

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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.