Home / 259,666.22-389,460.34-82,150.16

Finding the Fourth Proportional to 259,666.22, 389,460.34 and 82,150.16

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Solution

The fourth proportional to 259,666.22, 389,460.34 and 82,150.16 is: 123,212.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,666.22 : 389,460.34 = 82,150.16 : x
  2. Step 2: Convert to fraction form
    259,666.22/389,460.34 = 82,150.16/x
  3. Step 3: Cross multiply
    259,666.22x = 389,460.34 × 82,150.16
  4. Step 4: Simplify right side
    259,666.22x = 31,994,229,244.65
  5. Step 5: Solve for x
    x = 31,994,229,244.65/259,666.22
  6. Step 6: Final answer
    x = 123,212.90

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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.