Home / 143,136-221,743.13

Finding the Third Proportional to 143,136 and 221,743.13

Calculator

Solution

The third proportional to 143,136 and 221,743.13 is: 343,519.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,136 : 221,743.13 = 221,743.13 : x
  2. Step 2: Convert to fraction form
    143,136/221,743.13 = 221,743.13/x
  3. Step 3: Cross multiply
    143,136x = 221,743.13 × 221,743.13
  4. Step 4: Simplify right side
    143,136x = 49,170,013,484.77
  5. Step 5: Solve for x
    x = 49,170,013,484.77/143,136
  6. Step 6: Final answer
    x = 343,519.54

Related Problems

Find third proportional to 71,568 and 110,871.56
Half scale
Find third proportional to 286,272 and 443,486.25
Double scale
Find third proportional to 143,138 and 221,746
Similar ratio
Find third proportional to 214,704 and 332,614.69
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.