Home / 235,617-515,215

Finding the Third Proportional to 235,617 and 515,215

Calculator

Solution

The third proportional to 235,617 and 515,215 is: 1,126,601.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,617 : 515,215 = 515,215 : x
  2. Step 2: Convert to fraction form
    235,617/515,215 = 515,215/x
  3. Step 3: Cross multiply
    235,617x = 515,215 × 515,215
  4. Step 4: Simplify right side
    235,617x = 265,446,496,225
  5. Step 5: Solve for x
    x = 265,446,496,225/235,617
  6. Step 6: Final answer
    x = 1,126,601.63

Related Problems

Find third proportional to 117,808.50 and 257,607.50
Half scale
Find third proportional to 471,234 and 1,030,430
Double scale
Find third proportional to 235,619 and 515,219
Similar ratio
Find third proportional to 353,425.50 and 772,822.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.