Home / 218-572

Finding the Third Proportional to 218 and 572

Calculator

Solution

The third proportional to 218 and 572 is: 1,500.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    218 : 572 = 572 : x
  2. Step 2: Convert to fraction form
    218/572 = 572/x
  3. Step 3: Cross multiply
    218x = 572 × 572
  4. Step 4: Simplify right side
    218x = 327,184
  5. Step 5: Solve for x
    x = 327,184/218
  6. Step 6: Final answer
    x = 1,500.84

Related Problems

Find third proportional to 109 and 286
Half scale
Find third proportional to 436 and 1,144
Double scale
Find third proportional to 220 and 577
Similar ratio
Find third proportional to 327 and 858
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.