Home / 217,413-343,629

Finding the Third Proportional to 217,413 and 343,629

Calculator

Solution

The third proportional to 217,413 and 343,629 is: 543,117.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,413 : 343,629 = 343,629 : x
  2. Step 2: Convert to fraction form
    217,413/343,629 = 343,629/x
  3. Step 3: Cross multiply
    217,413x = 343,629 × 343,629
  4. Step 4: Simplify right side
    217,413x = 118,080,889,641
  5. Step 5: Solve for x
    x = 118,080,889,641/217,413
  6. Step 6: Final answer
    x = 543,117.89

Related Problems

Find third proportional to 108,706.50 and 171,814.50
Half scale
Find third proportional to 434,826 and 687,258
Double scale
Find third proportional to 217,415 and 343,632
Similar ratio
Find third proportional to 326,119.50 and 515,443.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.