Home / 214,729.76-321,968.82-143,733.26

Finding the Fourth Proportional to 214,729.76, 321,968.82 and 143,733.26

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Solution

The fourth proportional to 214,729.76, 321,968.82 and 143,733.26 is: 215,515.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,729.76 : 321,968.82 = 143,733.26 : x
  2. Step 2: Convert to fraction form
    214,729.76/321,968.82 = 143,733.26/x
  3. Step 3: Cross multiply
    214,729.76x = 321,968.82 × 143,733.26
  4. Step 4: Simplify right side
    214,729.76x = 46,277,628,116.95
  5. Step 5: Solve for x
    x = 46,277,628,116.95/214,729.76
  6. Step 6: Final answer
    x = 215,515.67

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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.