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Finding the Fourth Proportional to 300,986.37, 415,359.36 and 165,026.07

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Solution

The fourth proportional to 300,986.37, 415,359.36 and 165,026.07 is: 227,734.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,986.37 : 415,359.36 = 165,026.07 : x
  2. Step 2: Convert to fraction form
    300,986.37/415,359.36 = 165,026.07/x
  3. Step 3: Cross multiply
    300,986.37x = 415,359.36 × 165,026.07
  4. Step 4: Simplify right side
    300,986.37x = 68,545,122,818.52
  5. Step 5: Solve for x
    x = 68,545,122,818.52/300,986.37
  6. Step 6: Final answer
    x = 227,734.97

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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.