Home / 259,730.12-389,718.59-179,890.97

Finding the Fourth Proportional to 259,730.12, 389,718.59 and 179,890.97

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Solution

The fourth proportional to 259,730.12, 389,718.59 and 179,890.97 is: 269,921.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,730.12 : 389,718.59 = 179,890.97 : x
  2. Step 2: Convert to fraction form
    259,730.12/389,718.59 = 179,890.97/x
  3. Step 3: Cross multiply
    259,730.12x = 389,718.59 × 179,890.97
  4. Step 4: Simplify right side
    259,730.12x = 70,106,852,334.08
  5. Step 5: Solve for x
    x = 70,106,852,334.08/259,730.12
  6. Step 6: Final answer
    x = 269,921.92

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1.5x scale

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.