Home / 135,887-288,217

Finding the Third Proportional to 135,887 and 288,217

Calculator

Solution

The third proportional to 135,887 and 288,217 is: 611,309.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,887 : 288,217 = 288,217 : x
  2. Step 2: Convert to fraction form
    135,887/288,217 = 288,217/x
  3. Step 3: Cross multiply
    135,887x = 288,217 × 288,217
  4. Step 4: Simplify right side
    135,887x = 83,069,039,089
  5. Step 5: Solve for x
    x = 83,069,039,089/135,887
  6. Step 6: Final answer
    x = 611,309.68

Related Problems

Find third proportional to 67,943.50 and 144,108.50
Half scale
Find third proportional to 271,774 and 576,434
Double scale
Find third proportional to 135,889 and 288,221
Similar ratio
Find third proportional to 203,830.50 and 432,325.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.