Home / 288,961.70-398,592.78-190,845.54

Finding the Fourth Proportional to 288,961.70, 398,592.78 and 190,845.54

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Solution

The fourth proportional to 288,961.70, 398,592.78 and 190,845.54 is: 263,251.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,961.70 : 398,592.78 = 190,845.54 : x
  2. Step 2: Convert to fraction form
    288,961.70/398,592.78 = 190,845.54/x
  3. Step 3: Cross multiply
    288,961.70x = 398,592.78 × 190,845.54
  4. Step 4: Simplify right side
    288,961.70x = 76,069,654,339.20
  5. Step 5: Solve for x
    x = 76,069,654,339.20/288,961.70
  6. Step 6: Final answer
    x = 263,251.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.