Home / 159,487-256,969

Finding the Third Proportional to 159,487 and 256,969

Calculator

Solution

The third proportional to 159,487 and 256,969 is: 414,034.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,487 : 256,969 = 256,969 : x
  2. Step 2: Convert to fraction form
    159,487/256,969 = 256,969/x
  3. Step 3: Cross multiply
    159,487x = 256,969 × 256,969
  4. Step 4: Simplify right side
    159,487x = 66,033,066,961
  5. Step 5: Solve for x
    x = 66,033,066,961/159,487
  6. Step 6: Final answer
    x = 414,034.17

Related Problems

Find third proportional to 79,743.50 and 128,484.50
Half scale
Find third proportional to 318,974 and 513,938
Double scale
Find third proportional to 159,489 and 256,972
Similar ratio
Find third proportional to 239,230.50 and 385,453.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.