Home / 214,615.70-321,795.55-131,569.30

Finding the Fourth Proportional to 214,615.70, 321,795.55 and 131,569.30

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Solution

The fourth proportional to 214,615.70, 321,795.55 and 131,569.30 is: 197,275.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,615.70 : 321,795.55 = 131,569.30 : x
  2. Step 2: Convert to fraction form
    214,615.70/321,795.55 = 131,569.30/x
  3. Step 3: Cross multiply
    214,615.70x = 321,795.55 × 131,569.30
  4. Step 4: Simplify right side
    214,615.70x = 42,338,415,256.62
  5. Step 5: Solve for x
    x = 42,338,415,256.62/214,615.70
  6. Step 6: Final answer
    x = 197,275.48

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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.