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Finding the Fourth Proportional to 371,514.96, 557,272.38 and 91,029.78

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Solution

The fourth proportional to 371,514.96, 557,272.38 and 91,029.78 is: 136,544.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,514.96 : 557,272.38 = 91,029.78 : x
  2. Step 2: Convert to fraction form
    371,514.96/557,272.38 = 91,029.78/x
  3. Step 3: Cross multiply
    371,514.96x = 557,272.38 × 91,029.78
  4. Step 4: Simplify right side
    371,514.96x = 50,728,382,151.48
  5. Step 5: Solve for x
    x = 50,728,382,151.48/371,514.96
  6. Step 6: Final answer
    x = 136,544.66

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1.5x scale

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.