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Finding the Fourth Proportional to 448,512.42, 672,879.38 and 132,969.33

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Solution

The fourth proportional to 448,512.42, 672,879.38 and 132,969.33 is: 199,486.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,512.42 : 672,879.38 = 132,969.33 : x
  2. Step 2: Convert to fraction form
    448,512.42/672,879.38 = 132,969.33/x
  3. Step 3: Cross multiply
    448,512.42x = 672,879.38 × 132,969.33
  4. Step 4: Simplify right side
    448,512.42x = 89,472,319,664.57
  5. Step 5: Solve for x
    x = 89,472,319,664.57/448,512.42
  6. Step 6: Final answer
    x = 199,486.83

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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.