Home / 283,639.48-391,415.26-154,581.27

Finding the Fourth Proportional to 283,639.48, 391,415.26 and 154,581.27

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Solution

The fourth proportional to 283,639.48, 391,415.26 and 154,581.27 is: 213,318.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,639.48 : 391,415.26 = 154,581.27 : x
  2. Step 2: Convert to fraction form
    283,639.48/391,415.26 = 154,581.27/x
  3. Step 3: Cross multiply
    283,639.48x = 391,415.26 × 154,581.27
  4. Step 4: Simplify right side
    283,639.48x = 60,505,466,133.92
  5. Step 5: Solve for x
    x = 60,505,466,133.92/283,639.48
  6. Step 6: Final answer
    x = 213,318.21

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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.