Home / 213,863.20-320,103.60-197,274.40

Finding the Fourth Proportional to 213,863.20, 320,103.60 and 197,274.40

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Solution

The fourth proportional to 213,863.20, 320,103.60 and 197,274.40 is: 295,274.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,863.20 : 320,103.60 = 197,274.40 : x
  2. Step 2: Convert to fraction form
    213,863.20/320,103.60 = 197,274.40/x
  3. Step 3: Cross multiply
    213,863.20x = 320,103.60 × 197,274.40
  4. Step 4: Simplify right side
    213,863.20x = 63,148,245,627.84
  5. Step 5: Solve for x
    x = 63,148,245,627.84/213,863.20
  6. Step 6: Final answer
    x = 295,274.01

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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.