Home / 136,475-243,417

Finding the Third Proportional to 136,475 and 243,417

Calculator

Solution

The third proportional to 136,475 and 243,417 is: 434,158.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,475 : 243,417 = 243,417 : x
  2. Step 2: Convert to fraction form
    136,475/243,417 = 243,417/x
  3. Step 3: Cross multiply
    136,475x = 243,417 × 243,417
  4. Step 4: Simplify right side
    136,475x = 59,251,835,889
  5. Step 5: Solve for x
    x = 59,251,835,889/136,475
  6. Step 6: Final answer
    x = 434,158.90

Related Problems

Find third proportional to 68,237.50 and 121,708.50
Half scale
Find third proportional to 272,950 and 486,834
Double scale
Find third proportional to 136,477 and 243,421
Similar ratio
Find third proportional to 204,712.50 and 365,125.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.