Home / 283,840.41-391,691.37-156,515.97

Finding the Fourth Proportional to 283,840.41, 391,691.37 and 156,515.97

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Solution

The fourth proportional to 283,840.41, 391,691.37 and 156,515.97 is: 215,987.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,840.41 : 391,691.37 = 156,515.97 : x
  2. Step 2: Convert to fraction form
    283,840.41/391,691.37 = 156,515.97/x
  3. Step 3: Cross multiply
    283,840.41x = 391,691.37 × 156,515.97
  4. Step 4: Simplify right side
    283,840.41x = 61,305,954,716.18
  5. Step 5: Solve for x
    x = 61,305,954,716.18/283,840.41
  6. Step 6: Final answer
    x = 215,987.41

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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.