Home / 214,231.13-321,572.82-209,405.71

Finding the Fourth Proportional to 214,231.13, 321,572.82 and 209,405.71

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Solution

The fourth proportional to 214,231.13, 321,572.82 and 209,405.71 is: 314,329.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,231.13 : 321,572.82 = 209,405.71 : x
  2. Step 2: Convert to fraction form
    214,231.13/321,572.82 = 209,405.71/x
  3. Step 3: Cross multiply
    214,231.13x = 321,572.82 × 209,405.71
  4. Step 4: Simplify right side
    214,231.13x = 67,339,184,688.80
  5. Step 5: Solve for x
    x = 67,339,184,688.80/214,231.13
  6. Step 6: Final answer
    x = 314,329.60

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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.