Home / 259,825.37-389,749.01-82,328.45

Finding the Fourth Proportional to 259,825.37, 389,749.01 and 82,328.45

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Solution

The fourth proportional to 259,825.37, 389,749.01 and 82,328.45 is: 123,496.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,825.37 : 389,749.01 = 82,328.45 : x
  2. Step 2: Convert to fraction form
    259,825.37/389,749.01 = 82,328.45/x
  3. Step 3: Cross multiply
    259,825.37x = 389,749.01 × 82,328.45
  4. Step 4: Simplify right side
    259,825.37x = 32,087,429,521.95
  5. Step 5: Solve for x
    x = 32,087,429,521.95/259,825.37
  6. Step 6: Final answer
    x = 123,496.14

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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.