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Finding the Fourth Proportional to 450,901.89, 676,451.12 and 135,383.40

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Solution

The fourth proportional to 450,901.89, 676,451.12 and 135,383.40 is: 203,104.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,901.89 : 676,451.12 = 135,383.40 : x
  2. Step 2: Convert to fraction form
    450,901.89/676,451.12 = 135,383.40/x
  3. Step 3: Cross multiply
    450,901.89x = 676,451.12 × 135,383.40
  4. Step 4: Simplify right side
    450,901.89x = 91,580,251,882.49
  5. Step 5: Solve for x
    x = 91,580,251,882.49/450,901.89
  6. Step 6: Final answer
    x = 203,104.61

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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.