Home / 210,653-438,808

Finding the Third Proportional to 210,653 and 438,808

Calculator

Solution

The third proportional to 210,653 and 438,808 is: 914,074.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,653 : 438,808 = 438,808 : x
  2. Step 2: Convert to fraction form
    210,653/438,808 = 438,808/x
  3. Step 3: Cross multiply
    210,653x = 438,808 × 438,808
  4. Step 4: Simplify right side
    210,653x = 192,552,460,864
  5. Step 5: Solve for x
    x = 192,552,460,864/210,653
  6. Step 6: Final answer
    x = 914,074.14

Related Problems

Find third proportional to 105,326.50 and 219,404
Half scale
Find third proportional to 421,306 and 877,616
Double scale
Find third proportional to 210,655 and 438,812
Similar ratio
Find third proportional to 315,979.50 and 658,212
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.