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Finding the Fourth Proportional to 300,889.47, 451,330.56 and 73,186.32

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Solution

The fourth proportional to 300,889.47, 451,330.56 and 73,186.32 is: 109,778.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,889.47 : 451,330.56 = 73,186.32 : x
  2. Step 2: Convert to fraction form
    300,889.47/451,330.56 = 73,186.32/x
  3. Step 3: Cross multiply
    300,889.47x = 451,330.56 × 73,186.32
  4. Step 4: Simplify right side
    300,889.47x = 33,031,222,789.94
  5. Step 5: Solve for x
    x = 33,031,222,789.94/300,889.47
  6. Step 6: Final answer
    x = 109,778.59

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1.5x scale

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.