Home / 201,575-291,385

Finding the Third Proportional to 201,575 and 291,385

Calculator

Solution

The third proportional to 201,575 and 291,385 is: 421,209.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,575 : 291,385 = 291,385 : x
  2. Step 2: Convert to fraction form
    201,575/291,385 = 291,385/x
  3. Step 3: Cross multiply
    201,575x = 291,385 × 291,385
  4. Step 4: Simplify right side
    201,575x = 84,905,218,225
  5. Step 5: Solve for x
    x = 84,905,218,225/201,575
  6. Step 6: Final answer
    x = 421,209.07

Related Problems

Find third proportional to 100,787.50 and 145,692.50
Half scale
Find third proportional to 403,150 and 582,770
Double scale
Find third proportional to 201,577 and 291,388
Similar ratio
Find third proportional to 302,362.50 and 437,077.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.