Home / 308,138-662,266

Finding the Third Proportional to 308,138 and 662,266

Calculator

Solution

The third proportional to 308,138 and 662,266 is: 1,423,376.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,138 : 662,266 = 662,266 : x
  2. Step 2: Convert to fraction form
    308,138/662,266 = 662,266/x
  3. Step 3: Cross multiply
    308,138x = 662,266 × 662,266
  4. Step 4: Simplify right side
    308,138x = 438,596,254,756
  5. Step 5: Solve for x
    x = 438,596,254,756/308,138
  6. Step 6: Final answer
    x = 1,423,376.07

Related Problems

Find third proportional to 154,069 and 331,133
Half scale
Find third proportional to 616,276 and 1,324,532
Double scale
Find third proportional to 308,140 and 662,270
Similar ratio
Find third proportional to 462,207 and 993,399
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.