Home / 214,631.92-321,597.78-109,306

Finding the Fourth Proportional to 214,631.92, 321,597.78 and 109,306

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Solution

The fourth proportional to 214,631.92, 321,597.78 and 109,306 is: 163,780.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,631.92 : 321,597.78 = 109,306 : x
  2. Step 2: Convert to fraction form
    214,631.92/321,597.78 = 109,306/x
  3. Step 3: Cross multiply
    214,631.92x = 321,597.78 × 109,306
  4. Step 4: Simplify right side
    214,631.92x = 35,152,566,940.68
  5. Step 5: Solve for x
    x = 35,152,566,940.68/214,631.92
  6. Step 6: Final answer
    x = 163,780.70

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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.