Home / 312,100-408,060

Finding the Third Proportional to 312,100 and 408,060

Calculator

Solution

The third proportional to 312,100 and 408,060 is: 533,524.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,100 : 408,060 = 408,060 : x
  2. Step 2: Convert to fraction form
    312,100/408,060 = 408,060/x
  3. Step 3: Cross multiply
    312,100x = 408,060 × 408,060
  4. Step 4: Simplify right side
    312,100x = 166,512,963,600
  5. Step 5: Solve for x
    x = 166,512,963,600/312,100
  6. Step 6: Final answer
    x = 533,524.39

Related Problems

Find third proportional to 156,050 and 204,030
Half scale
Find third proportional to 624,200 and 816,120
Double scale
Find third proportional to 312,102 and 408,063
Similar ratio
Find third proportional to 468,150 and 612,090
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.