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Finding the Fourth Proportional to 300,889.61, 451,356.69 and 101,209.22

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Solution

The fourth proportional to 300,889.61, 451,356.69 and 101,209.22 is: 151,821.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,889.61 : 451,356.69 = 101,209.22 : x
  2. Step 2: Convert to fraction form
    300,889.61/451,356.69 = 101,209.22/x
  3. Step 3: Cross multiply
    300,889.61x = 451,356.69 × 101,209.22
  4. Step 4: Simplify right side
    300,889.61x = 45,681,458,536.68
  5. Step 5: Solve for x
    x = 45,681,458,536.68/300,889.61
  6. Step 6: Final answer
    x = 151,821.32

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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.