Home / 422,914.45-634,213.58-170,109.51

Finding the Fourth Proportional to 422,914.45, 634,213.58 and 170,109.51

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Solution

The fourth proportional to 422,914.45, 634,213.58 and 170,109.51 is: 255,100.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,914.45 : 634,213.58 = 170,109.51 : x
  2. Step 2: Convert to fraction form
    422,914.45/634,213.58 = 170,109.51/x
  3. Step 3: Cross multiply
    422,914.45x = 634,213.58 × 170,109.51
  4. Step 4: Simplify right side
    422,914.45x = 107,885,761,329.15
  5. Step 5: Solve for x
    x = 107,885,761,329.15/422,914.45
  6. Step 6: Final answer
    x = 255,100.67

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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.