Home / 263,310.16-395,820.60-211,288.72

Finding the Fourth Proportional to 263,310.16, 395,820.60 and 211,288.72

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Solution

The fourth proportional to 263,310.16, 395,820.60 and 211,288.72 is: 317,619.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,310.16 : 395,820.60 = 211,288.72 : x
  2. Step 2: Convert to fraction form
    263,310.16/395,820.60 = 211,288.72/x
  3. Step 3: Cross multiply
    263,310.16x = 395,820.60 × 211,288.72
  4. Step 4: Simplify right side
    263,310.16x = 83,632,427,923.63
  5. Step 5: Solve for x
    x = 83,632,427,923.63/263,310.16
  6. Step 6: Final answer
    x = 317,619.45

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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.