Home / 290,270-448,350

Finding the Third Proportional to 290,270 and 448,350

Calculator

Solution

The third proportional to 290,270 and 448,350 is: 692,519.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,270 : 448,350 = 448,350 : x
  2. Step 2: Convert to fraction form
    290,270/448,350 = 448,350/x
  3. Step 3: Cross multiply
    290,270x = 448,350 × 448,350
  4. Step 4: Simplify right side
    290,270x = 201,017,722,500
  5. Step 5: Solve for x
    x = 201,017,722,500/290,270
  6. Step 6: Final answer
    x = 692,519.80

Related Problems

Find third proportional to 145,135 and 224,175
Half scale
Find third proportional to 580,540 and 896,700
Double scale
Find third proportional to 290,272 and 448,353
Similar ratio
Find third proportional to 435,405 and 672,525
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.