Home / 206,851-316,290

Finding the Third Proportional to 206,851 and 316,290

Calculator

Solution

The third proportional to 206,851 and 316,290 is: 483,630.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,851 : 316,290 = 316,290 : x
  2. Step 2: Convert to fraction form
    206,851/316,290 = 316,290/x
  3. Step 3: Cross multiply
    206,851x = 316,290 × 316,290
  4. Step 4: Simplify right side
    206,851x = 100,039,364,100
  5. Step 5: Solve for x
    x = 100,039,364,100/206,851
  6. Step 6: Final answer
    x = 483,630.07

Related Problems

Find third proportional to 103,425.50 and 158,145
Half scale
Find third proportional to 413,702 and 632,580
Double scale
Find third proportional to 206,853 and 316,293
Similar ratio
Find third proportional to 310,276.50 and 474,435
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.