Home / 271,409.50-399,219.50

Finding the Third Proportional to 271,409.50 and 399,219.50

Calculator

Solution

The third proportional to 271,409.50 and 399,219.50 is: 587,216.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,409.50 : 399,219.50 = 399,219.50 : x
  2. Step 2: Convert to fraction form
    271,409.50/399,219.50 = 399,219.50/x
  3. Step 3: Cross multiply
    271,409.50x = 399,219.50 × 399,219.50
  4. Step 4: Simplify right side
    271,409.50x = 159,376,209,180.25
  5. Step 5: Solve for x
    x = 159,376,209,180.25/271,409.50
  6. Step 6: Final answer
    x = 587,216.77

Related Problems

Find third proportional to 135,704.75 and 199,609.75
Half scale
Find third proportional to 542,819 and 798,439
Double scale
Find third proportional to 271,412 and 399,222
Similar ratio
Find third proportional to 407,114.25 and 598,829.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.