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Finding the Fourth Proportional to 300,447.66, 450,696.06 and 100,769.70

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Solution

The fourth proportional to 300,447.66, 450,696.06 and 100,769.70 is: 151,162.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,447.66 : 450,696.06 = 100,769.70 : x
  2. Step 2: Convert to fraction form
    300,447.66/450,696.06 = 100,769.70/x
  3. Step 3: Cross multiply
    300,447.66x = 450,696.06 × 100,769.70
  4. Step 4: Simplify right side
    300,447.66x = 45,416,506,757.38
  5. Step 5: Solve for x
    x = 45,416,506,757.38/300,447.66
  6. Step 6: Final answer
    x = 151,162.79

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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.