Home / 90,624-210,700

Finding the Third Proportional to 90,624 and 210,700

Calculator

Solution

The third proportional to 90,624 and 210,700 is: 489,875.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,624 : 210,700 = 210,700 : x
  2. Step 2: Convert to fraction form
    90,624/210,700 = 210,700/x
  3. Step 3: Cross multiply
    90,624x = 210,700 × 210,700
  4. Step 4: Simplify right side
    90,624x = 44,394,490,000
  5. Step 5: Solve for x
    x = 44,394,490,000/90,624
  6. Step 6: Final answer
    x = 489,875.64

Related Problems

Find third proportional to 45,312 and 105,350
Half scale
Find third proportional to 181,248 and 421,400
Double scale
Find third proportional to 90,626 and 210,705
Similar ratio
Find third proportional to 135,936 and 316,050
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.