Home / 217,825.60-326,738.40-191,581.60

Finding the Fourth Proportional to 217,825.60, 326,738.40 and 191,581.60

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Solution

The fourth proportional to 217,825.60, 326,738.40 and 191,581.60 is: 287,372.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,825.60 : 326,738.40 = 191,581.60 : x
  2. Step 2: Convert to fraction form
    217,825.60/326,738.40 = 191,581.60/x
  3. Step 3: Cross multiply
    217,825.60x = 326,738.40 × 191,581.60
  4. Step 4: Simplify right side
    217,825.60x = 62,597,065,453.44
  5. Step 5: Solve for x
    x = 62,597,065,453.44/217,825.60
  6. Step 6: Final answer
    x = 287,372.40

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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.