Home / 211,104-315,603

Finding the Third Proportional to 211,104 and 315,603

Calculator

Solution

The third proportional to 211,104 and 315,603 is: 471,830.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,104 : 315,603 = 315,603 : x
  2. Step 2: Convert to fraction form
    211,104/315,603 = 315,603/x
  3. Step 3: Cross multiply
    211,104x = 315,603 × 315,603
  4. Step 4: Simplify right side
    211,104x = 99,605,253,609
  5. Step 5: Solve for x
    x = 99,605,253,609/211,104
  6. Step 6: Final answer
    x = 471,830.25

Related Problems

Find third proportional to 105,552 and 157,801.50
Half scale
Find third proportional to 422,208 and 631,206
Double scale
Find third proportional to 211,106 and 315,606
Similar ratio
Find third proportional to 316,656 and 473,404.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.