Home / 283,619.35-391,389.66-154,558.97

Finding the Fourth Proportional to 283,619.35, 391,389.66 and 154,558.97

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Solution

The fourth proportional to 283,619.35, 391,389.66 and 154,558.97 is: 213,288.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,619.35 : 391,389.66 = 154,558.97 : x
  2. Step 2: Convert to fraction form
    283,619.35/391,389.66 = 154,558.97/x
  3. Step 3: Cross multiply
    283,619.35x = 391,389.66 × 154,558.97
  4. Step 4: Simplify right side
    283,619.35x = 60,492,782,718.25
  5. Step 5: Solve for x
    x = 60,492,782,718.25/283,619.35
  6. Step 6: Final answer
    x = 213,288.63

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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.