Home / 217,034-345,243

Finding the Third Proportional to 217,034 and 345,243

Calculator

Solution

The third proportional to 217,034 and 345,243 is: 549,189.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,034 : 345,243 = 345,243 : x
  2. Step 2: Convert to fraction form
    217,034/345,243 = 345,243/x
  3. Step 3: Cross multiply
    217,034x = 345,243 × 345,243
  4. Step 4: Simplify right side
    217,034x = 119,192,729,049
  5. Step 5: Solve for x
    x = 119,192,729,049/217,034
  6. Step 6: Final answer
    x = 549,189.20

Related Problems

Find third proportional to 108,517 and 172,621.50
Half scale
Find third proportional to 434,068 and 690,486
Double scale
Find third proportional to 217,036 and 345,246
Similar ratio
Find third proportional to 325,551 and 517,864.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.