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Finding the Fourth Proportional to 301,194.70, 415,644.82 and 172,131.73

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Solution

The fourth proportional to 301,194.70, 415,644.82 and 172,131.73 is: 237,539.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,194.70 : 415,644.82 = 172,131.73 : x
  2. Step 2: Convert to fraction form
    301,194.70/415,644.82 = 172,131.73/x
  3. Step 3: Cross multiply
    301,194.70x = 415,644.82 × 172,131.73
  4. Step 4: Simplify right side
    301,194.70x = 71,545,660,462.70
  5. Step 5: Solve for x
    x = 71,545,660,462.70/301,194.70
  6. Step 6: Final answer
    x = 237,539.58

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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.