Home / 259,664.22-389,457.34-82,148.16

Finding the Fourth Proportional to 259,664.22, 389,457.34 and 82,148.16

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Solution

The fourth proportional to 259,664.22, 389,457.34 and 82,148.16 is: 123,209.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,664.22 : 389,457.34 = 82,148.16 : x
  2. Step 2: Convert to fraction form
    259,664.22/389,457.34 = 82,148.16/x
  3. Step 3: Cross multiply
    259,664.22x = 389,457.34 × 82,148.16
  4. Step 4: Simplify right side
    259,664.22x = 31,993,201,521.47
  5. Step 5: Solve for x
    x = 31,993,201,521.47/259,664.22
  6. Step 6: Final answer
    x = 123,209.90

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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.