Home / 259,816.12-389,735.52-82,336.22

Finding the Fourth Proportional to 259,816.12, 389,735.52 and 82,336.22

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Solution

The fourth proportional to 259,816.12, 389,735.52 and 82,336.22 is: 123,507.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,816.12 : 389,735.52 = 82,336.22 : x
  2. Step 2: Convert to fraction form
    259,816.12/389,735.52 = 82,336.22/x
  3. Step 3: Cross multiply
    259,816.12x = 389,735.52 × 82,336.22
  4. Step 4: Simplify right side
    259,816.12x = 32,089,349,516.53
  5. Step 5: Solve for x
    x = 32,089,349,516.53/259,816.12
  6. Step 6: Final answer
    x = 123,507.92

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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.