Home / 209,708-456,280

Finding the Third Proportional to 209,708 and 456,280

Calculator

Solution

The third proportional to 209,708 and 456,280 is: 992,768.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,708 : 456,280 = 456,280 : x
  2. Step 2: Convert to fraction form
    209,708/456,280 = 456,280/x
  3. Step 3: Cross multiply
    209,708x = 456,280 × 456,280
  4. Step 4: Simplify right side
    209,708x = 208,191,438,400
  5. Step 5: Solve for x
    x = 208,191,438,400/209,708
  6. Step 6: Final answer
    x = 992,768.22

Related Problems

Find third proportional to 104,854 and 228,140
Half scale
Find third proportional to 419,416 and 912,560
Double scale
Find third proportional to 209,710 and 456,284
Similar ratio
Find third proportional to 314,562 and 684,420
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.