Home / 223,140-312,822

Finding the Third Proportional to 223,140 and 312,822

Calculator

Solution

The third proportional to 223,140 and 312,822 is: 438,548.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,140 : 312,822 = 312,822 : x
  2. Step 2: Convert to fraction form
    223,140/312,822 = 312,822/x
  3. Step 3: Cross multiply
    223,140x = 312,822 × 312,822
  4. Step 4: Simplify right side
    223,140x = 97,857,603,684
  5. Step 5: Solve for x
    x = 97,857,603,684/223,140
  6. Step 6: Final answer
    x = 438,548.01

Related Problems

Find third proportional to 111,570 and 156,411
Half scale
Find third proportional to 446,280 and 625,644
Double scale
Find third proportional to 223,142 and 312,825
Similar ratio
Find third proportional to 334,710 and 469,233
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.