Home / 187,278-406,308

Finding the Third Proportional to 187,278 and 406,308

Calculator

Solution

The third proportional to 187,278 and 406,308 is: 881,503.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,278 : 406,308 = 406,308 : x
  2. Step 2: Convert to fraction form
    187,278/406,308 = 406,308/x
  3. Step 3: Cross multiply
    187,278x = 406,308 × 406,308
  4. Step 4: Simplify right side
    187,278x = 165,086,190,864
  5. Step 5: Solve for x
    x = 165,086,190,864/187,278
  6. Step 6: Final answer
    x = 881,503.38

Related Problems

Find third proportional to 93,639 and 203,154
Half scale
Find third proportional to 374,556 and 812,616
Double scale
Find third proportional to 187,280 and 406,312
Similar ratio
Find third proportional to 280,917 and 609,462
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.