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Finding the Fourth Proportional to 250,336.68, 375,528.12 and 81,857.88

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Solution

The fourth proportional to 250,336.68, 375,528.12 and 81,857.88 is: 122,794.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,336.68 : 375,528.12 = 81,857.88 : x
  2. Step 2: Convert to fraction form
    250,336.68/375,528.12 = 81,857.88/x
  3. Step 3: Cross multiply
    250,336.68x = 375,528.12 × 81,857.88
  4. Step 4: Simplify right side
    250,336.68x = 30,739,935,783.59
  5. Step 5: Solve for x
    x = 30,739,935,783.59/250,336.68
  6. Step 6: Final answer
    x = 122,794.37

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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.