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Finding the Fourth Proportional to 300,889.46, 415,273.20 and 192,040.82

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Solution

The fourth proportional to 300,889.46, 415,273.20 and 192,040.82 is: 265,045.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,889.46 : 415,273.20 = 192,040.82 : x
  2. Step 2: Convert to fraction form
    300,889.46/415,273.20 = 192,040.82/x
  3. Step 3: Cross multiply
    300,889.46x = 415,273.20 × 192,040.82
  4. Step 4: Simplify right side
    300,889.46x = 79,749,405,852.02
  5. Step 5: Solve for x
    x = 79,749,405,852.02/300,889.46
  6. Step 6: Final answer
    x = 265,045.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.