Home / 263,818.62-395,739-76,830.12

Finding the Fourth Proportional to 263,818.62, 395,739 and 76,830.12

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Solution

The fourth proportional to 263,818.62, 395,739 and 76,830.12 is: 115,248.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,818.62 : 395,739 = 76,830.12 : x
  2. Step 2: Convert to fraction form
    263,818.62/395,739 = 76,830.12/x
  3. Step 3: Cross multiply
    263,818.62x = 395,739 × 76,830.12
  4. Step 4: Simplify right side
    263,818.62x = 30,404,674,858.68
  5. Step 5: Solve for x
    x = 30,404,674,858.68/263,818.62
  6. Step 6: Final answer
    x = 115,248.40

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1.5x scale

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.