Home / 121,405-183,801.50

Finding the Third Proportional to 121,405 and 183,801.50

Calculator

Solution

The third proportional to 121,405 and 183,801.50 is: 278,266.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,405 : 183,801.50 = 183,801.50 : x
  2. Step 2: Convert to fraction form
    121,405/183,801.50 = 183,801.50/x
  3. Step 3: Cross multiply
    121,405x = 183,801.50 × 183,801.50
  4. Step 4: Simplify right side
    121,405x = 33,782,991,402.25
  5. Step 5: Solve for x
    x = 33,782,991,402.25/121,405
  6. Step 6: Final answer
    x = 278,266.89

Related Problems

Find third proportional to 60,702.50 and 91,900.75
Half scale
Find third proportional to 242,810 and 367,603
Double scale
Find third proportional to 121,407 and 183,805
Similar ratio
Find third proportional to 182,107.50 and 275,702.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.