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Finding the Fourth Proportional to 451,419.69, 676,932.69 and 170,740.11

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Solution

The fourth proportional to 451,419.69, 676,932.69 and 170,740.11 is: 256,035.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,419.69 : 676,932.69 = 170,740.11 : x
  2. Step 2: Convert to fraction form
    451,419.69/676,932.69 = 170,740.11/x
  3. Step 3: Cross multiply
    451,419.69x = 676,932.69 × 170,740.11
  4. Step 4: Simplify right side
    451,419.69x = 115,579,560,719.72
  5. Step 5: Solve for x
    x = 115,579,560,719.72/451,419.69
  6. Step 6: Final answer
    x = 256,035.71

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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.