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Finding the Fourth Proportional to 250,214.40, 375,226.56 and 81,694.72

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Solution

The fourth proportional to 250,214.40, 375,226.56 and 81,694.72 is: 122,511.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,214.40 : 375,226.56 = 81,694.72 : x
  2. Step 2: Convert to fraction form
    250,214.40/375,226.56 = 81,694.72/x
  3. Step 3: Cross multiply
    250,214.40x = 375,226.56 × 81,694.72
  4. Step 4: Simplify right side
    250,214.40x = 30,654,028,755.76
  5. Step 5: Solve for x
    x = 30,654,028,755.76/250,214.40
  6. Step 6: Final answer
    x = 122,511.05

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1.5x scale

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.