Home / 183,672-278,280

Finding the Third Proportional to 183,672 and 278,280

Calculator

Solution

The third proportional to 183,672 and 278,280 is: 421,619.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,672 : 278,280 = 278,280 : x
  2. Step 2: Convert to fraction form
    183,672/278,280 = 278,280/x
  3. Step 3: Cross multiply
    183,672x = 278,280 × 278,280
  4. Step 4: Simplify right side
    183,672x = 77,439,758,400
  5. Step 5: Solve for x
    x = 77,439,758,400/183,672
  6. Step 6: Final answer
    x = 421,619.84

Related Problems

Find third proportional to 91,836 and 139,140
Half scale
Find third proportional to 367,344 and 556,560
Double scale
Find third proportional to 183,674 and 278,283
Similar ratio
Find third proportional to 275,508 and 417,420
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.