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Finding the Fourth Proportional to 250,354.63, 375,591 and 81,874.29

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Solution

The fourth proportional to 250,354.63, 375,591 and 81,874.29 is: 122,830.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,354.63 : 375,591 = 81,874.29 : x
  2. Step 2: Convert to fraction form
    250,354.63/375,591 = 81,874.29/x
  3. Step 3: Cross multiply
    250,354.63x = 375,591 × 81,874.29
  4. Step 4: Simplify right side
    250,354.63x = 30,751,246,455.39
  5. Step 5: Solve for x
    x = 30,751,246,455.39/250,354.63
  6. Step 6: Final answer
    x = 122,830.75

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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.