Home / 263,816.86-395,774.49-86,333.59

Finding the Fourth Proportional to 263,816.86, 395,774.49 and 86,333.59

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Solution

The fourth proportional to 263,816.86, 395,774.49 and 86,333.59 is: 129,516.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,816.86 : 395,774.49 = 86,333.59 : x
  2. Step 2: Convert to fraction form
    263,816.86/395,774.49 = 86,333.59/x
  3. Step 3: Cross multiply
    263,816.86x = 395,774.49 × 86,333.59
  4. Step 4: Simplify right side
    263,816.86x = 34,168,632,552.12
  5. Step 5: Solve for x
    x = 34,168,632,552.12/263,816.86
  6. Step 6: Final answer
    x = 129,516.49

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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.