Home / 214,727.76-321,965.82-143,731.26

Finding the Fourth Proportional to 214,727.76, 321,965.82 and 143,731.26

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Solution

The fourth proportional to 214,727.76, 321,965.82 and 143,731.26 is: 215,512.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,727.76 : 321,965.82 = 143,731.26 : x
  2. Step 2: Convert to fraction form
    214,727.76/321,965.82 = 143,731.26/x
  3. Step 3: Cross multiply
    214,727.76x = 321,965.82 × 143,731.26
  4. Step 4: Simplify right side
    214,727.76x = 46,276,552,985.53
  5. Step 5: Solve for x
    x = 46,276,552,985.53/214,727.76
  6. Step 6: Final answer
    x = 215,512.67

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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.