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Finding the Fourth Proportional to 252,803.75, 379,268 and 75,310.07

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Solution

The fourth proportional to 252,803.75, 379,268 and 75,310.07 is: 112,983.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,803.75 : 379,268 = 75,310.07 : x
  2. Step 2: Convert to fraction form
    252,803.75/379,268 = 75,310.07/x
  3. Step 3: Cross multiply
    252,803.75x = 379,268 × 75,310.07
  4. Step 4: Simplify right side
    252,803.75x = 28,562,699,628.76
  5. Step 5: Solve for x
    x = 28,562,699,628.76/252,803.75
  6. Step 6: Final answer
    x = 112,983.69

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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.