Home / 259,816.37-389,735.51-82,319.45

Finding the Fourth Proportional to 259,816.37, 389,735.51 and 82,319.45

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Solution

The fourth proportional to 259,816.37, 389,735.51 and 82,319.45 is: 123,482.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,816.37 : 389,735.51 = 82,319.45 : x
  2. Step 2: Convert to fraction form
    259,816.37/389,735.51 = 82,319.45/x
  3. Step 3: Cross multiply
    259,816.37x = 389,735.51 × 82,319.45
  4. Step 4: Simplify right side
    259,816.37x = 32,082,810,468.39
  5. Step 5: Solve for x
    x = 32,082,810,468.39/259,816.37
  6. Step 6: Final answer
    x = 123,482.64

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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.