Home / 286,272-378,510

Finding the Third Proportional to 286,272 and 378,510

Calculator

Solution

The third proportional to 286,272 and 378,510 is: 500,467.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,272 : 378,510 = 378,510 : x
  2. Step 2: Convert to fraction form
    286,272/378,510 = 378,510/x
  3. Step 3: Cross multiply
    286,272x = 378,510 × 378,510
  4. Step 4: Simplify right side
    286,272x = 143,269,820,100
  5. Step 5: Solve for x
    x = 143,269,820,100/286,272
  6. Step 6: Final answer
    x = 500,467.46

Related Problems

Find third proportional to 143,136 and 189,255
Half scale
Find third proportional to 572,544 and 757,020
Double scale
Find third proportional to 286,274 and 378,513
Similar ratio
Find third proportional to 429,408 and 567,765
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.