Home / 214,390.21-321,778.06-114,635.67

Finding the Fourth Proportional to 214,390.21, 321,778.06 and 114,635.67

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Solution

The fourth proportional to 214,390.21, 321,778.06 and 114,635.67 is: 172,056.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,390.21 : 321,778.06 = 114,635.67 : x
  2. Step 2: Convert to fraction form
    214,390.21/321,778.06 = 114,635.67/x
  3. Step 3: Cross multiply
    214,390.21x = 321,778.06 × 114,635.67
  4. Step 4: Simplify right side
    214,390.21x = 36,887,243,499.40
  5. Step 5: Solve for x
    x = 36,887,243,499.40/214,390.21
  6. Step 6: Final answer
    x = 172,056.57

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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.