Home / 135,090-312,711.75

Finding the Third Proportional to 135,090 and 312,711.75

Calculator

Solution

The third proportional to 135,090 and 312,711.75 is: 723,877.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,090 : 312,711.75 = 312,711.75 : x
  2. Step 2: Convert to fraction form
    135,090/312,711.75 = 312,711.75/x
  3. Step 3: Cross multiply
    135,090x = 312,711.75 × 312,711.75
  4. Step 4: Simplify right side
    135,090x = 97,788,638,588.06
  5. Step 5: Solve for x
    x = 97,788,638,588.06/135,090
  6. Step 6: Final answer
    x = 723,877.70

Related Problems

Find third proportional to 67,545 and 156,355.88
Half scale
Find third proportional to 270,180 and 625,423.50
Double scale
Find third proportional to 135,092 and 312,716
Similar ratio
Find third proportional to 202,635 and 469,067.63
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.