Home / 158.50-219

Finding the Third Proportional to 158.50 and 219

Calculator

Solution

The third proportional to 158.50 and 219 is: 302.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.50 : 219 = 219 : x
  2. Step 2: Convert to fraction form
    158.50/219 = 219/x
  3. Step 3: Cross multiply
    158.50x = 219 × 219
  4. Step 4: Simplify right side
    158.50x = 47,961
  5. Step 5: Solve for x
    x = 47,961/158.50
  6. Step 6: Final answer
    x = 302.59

Related Problems

Find third proportional to 79.25 and 109.50
Half scale
Find third proportional to 317 and 438
Double scale
Find third proportional to 161 and 222
Similar ratio
Find third proportional to 237.75 and 328.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.