Home / 214,934.40-321,964.20-109,812.60

Finding the Fourth Proportional to 214,934.40, 321,964.20 and 109,812.60

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Solution

The fourth proportional to 214,934.40, 321,964.20 and 109,812.60 is: 164,495.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,934.40 : 321,964.20 = 109,812.60 : x
  2. Step 2: Convert to fraction form
    214,934.40/321,964.20 = 109,812.60/x
  3. Step 3: Cross multiply
    214,934.40x = 321,964.20 × 109,812.60
  4. Step 4: Simplify right side
    214,934.40x = 35,355,725,908.92
  5. Step 5: Solve for x
    x = 35,355,725,908.92/214,934.40
  6. Step 6: Final answer
    x = 164,495.43

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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.