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Finding the Fourth Proportional to 300,369.05, 450,621.08 and 100,684.34

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Solution

The fourth proportional to 300,369.05, 450,621.08 and 100,684.34 is: 151,049.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,369.05 : 450,621.08 = 100,684.34 : x
  2. Step 2: Convert to fraction form
    300,369.05/450,621.08 = 100,684.34/x
  3. Step 3: Cross multiply
    300,369.05x = 450,621.08 × 100,684.34
  4. Step 4: Simplify right side
    300,369.05x = 45,370,483,273.36
  5. Step 5: Solve for x
    x = 45,370,483,273.36/300,369.05
  6. Step 6: Final answer
    x = 151,049.13

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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.