Home / 98-259.50

Finding the Third Proportional to 98 and 259.50

Calculator

Solution

The third proportional to 98 and 259.50 is: 687.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    98 : 259.50 = 259.50 : x
  2. Step 2: Convert to fraction form
    98/259.50 = 259.50/x
  3. Step 3: Cross multiply
    98x = 259.50 × 259.50
  4. Step 4: Simplify right side
    98x = 67,340.25
  5. Step 5: Solve for x
    x = 67,340.25/98
  6. Step 6: Final answer
    x = 687.15

Related Problems

Find third proportional to 49 and 129.75
Half scale
Find third proportional to 196 and 519
Double scale
Find third proportional to 100 and 265
Similar ratio
Find third proportional to 147 and 389.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.