Home / 149,629.50-319,990.50

Finding the Third Proportional to 149,629.50 and 319,990.50

Calculator

Solution

The third proportional to 149,629.50 and 319,990.50 is: 684,316.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,629.50 : 319,990.50 = 319,990.50 : x
  2. Step 2: Convert to fraction form
    149,629.50/319,990.50 = 319,990.50/x
  3. Step 3: Cross multiply
    149,629.50x = 319,990.50 × 319,990.50
  4. Step 4: Simplify right side
    149,629.50x = 102,393,920,090.25
  5. Step 5: Solve for x
    x = 102,393,920,090.25/149,629.50
  6. Step 6: Final answer
    x = 684,316.40

Related Problems

Find third proportional to 74,814.75 and 159,995.25
Half scale
Find third proportional to 299,259 and 639,981
Double scale
Find third proportional to 149,632 and 319,995
Similar ratio
Find third proportional to 224,444.25 and 479,985.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.