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Finding the Fourth Proportional to 300,768.09, 415,044.15 and 171,701.47

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Solution

The fourth proportional to 300,768.09, 415,044.15 and 171,701.47 is: 236,939.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,768.09 : 415,044.15 = 171,701.47 : x
  2. Step 2: Convert to fraction form
    300,768.09/415,044.15 = 171,701.47/x
  3. Step 3: Cross multiply
    300,768.09x = 415,044.15 × 171,701.47
  4. Step 4: Simplify right side
    300,768.09x = 71,263,691,510.65
  5. Step 5: Solve for x
    x = 71,263,691,510.65/300,768.09
  6. Step 6: Final answer
    x = 236,939.01

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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.