Home / 128,010-203,476.50

Finding the Third Proportional to 128,010 and 203,476.50

Calculator

Solution

The third proportional to 128,010 and 203,476.50 is: 323,433.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,010 : 203,476.50 = 203,476.50 : x
  2. Step 2: Convert to fraction form
    128,010/203,476.50 = 203,476.50/x
  3. Step 3: Cross multiply
    128,010x = 203,476.50 × 203,476.50
  4. Step 4: Simplify right side
    128,010x = 41,402,686,052.25
  5. Step 5: Solve for x
    x = 41,402,686,052.25/128,010
  6. Step 6: Final answer
    x = 323,433.22

Related Problems

Find third proportional to 64,005 and 101,738.25
Half scale
Find third proportional to 256,020 and 406,953
Double scale
Find third proportional to 128,012 and 203,480
Similar ratio
Find third proportional to 192,015 and 305,214.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.