Home / 259,729.75-389,718.02-179,890.59

Finding the Fourth Proportional to 259,729.75, 389,718.02 and 179,890.59

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Solution

The fourth proportional to 259,729.75, 389,718.02 and 179,890.59 is: 269,921.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,729.75 : 389,718.02 = 179,890.59 : x
  2. Step 2: Convert to fraction form
    259,729.75/389,718.02 = 179,890.59/x
  3. Step 3: Cross multiply
    259,729.75x = 389,718.02 × 179,890.59
  4. Step 4: Simplify right side
    259,729.75x = 70,106,605,001.16
  5. Step 5: Solve for x
    x = 70,106,605,001.16/259,729.75
  6. Step 6: Final answer
    x = 269,921.35

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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.