Home / 223,459-312,575

Finding the Third Proportional to 223,459 and 312,575

Calculator

Solution

The third proportional to 223,459 and 312,575 is: 437,230.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,459 : 312,575 = 312,575 : x
  2. Step 2: Convert to fraction form
    223,459/312,575 = 312,575/x
  3. Step 3: Cross multiply
    223,459x = 312,575 × 312,575
  4. Step 4: Simplify right side
    223,459x = 97,703,130,625
  5. Step 5: Solve for x
    x = 97,703,130,625/223,459
  6. Step 6: Final answer
    x = 437,230.68

Related Problems

Find third proportional to 111,729.50 and 156,287.50
Half scale
Find third proportional to 446,918 and 625,150
Double scale
Find third proportional to 223,461 and 312,578
Similar ratio
Find third proportional to 335,188.50 and 468,862.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.