Home / 214,439.21-321,252.79-143,146.86

Finding the Fourth Proportional to 214,439.21, 321,252.79 and 143,146.86

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Solution

The fourth proportional to 214,439.21, 321,252.79 and 143,146.86 is: 214,449.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,439.21 : 321,252.79 = 143,146.86 : x
  2. Step 2: Convert to fraction form
    214,439.21/321,252.79 = 143,146.86/x
  3. Step 3: Cross multiply
    214,439.21x = 321,252.79 × 143,146.86
  4. Step 4: Simplify right side
    214,439.21x = 45,986,327,439.01
  5. Step 5: Solve for x
    x = 45,986,327,439.01/214,439.21
  6. Step 6: Final answer
    x = 214,449.25

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1.5x scale

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.