Home / 212,280-313,560

Finding the Third Proportional to 212,280 and 313,560

Calculator

Solution

The third proportional to 212,280 and 313,560 is: 463,161.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,280 : 313,560 = 313,560 : x
  2. Step 2: Convert to fraction form
    212,280/313,560 = 313,560/x
  3. Step 3: Cross multiply
    212,280x = 313,560 × 313,560
  4. Step 4: Simplify right side
    212,280x = 98,319,873,600
  5. Step 5: Solve for x
    x = 98,319,873,600/212,280
  6. Step 6: Final answer
    x = 463,161.27

Related Problems

Find third proportional to 106,140 and 156,780
Half scale
Find third proportional to 424,560 and 627,120
Double scale
Find third proportional to 212,282 and 313,563
Similar ratio
Find third proportional to 318,420 and 470,340
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.