Home / 208,140-491,178

Finding the Third Proportional to 208,140 and 491,178

Calculator

Solution

The third proportional to 208,140 and 491,178 is: 1,159,103.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,140 : 491,178 = 491,178 : x
  2. Step 2: Convert to fraction form
    208,140/491,178 = 491,178/x
  3. Step 3: Cross multiply
    208,140x = 491,178 × 491,178
  4. Step 4: Simplify right side
    208,140x = 241,255,827,684
  5. Step 5: Solve for x
    x = 241,255,827,684/208,140
  6. Step 6: Final answer
    x = 1,159,103.62

Related Problems

Find third proportional to 104,070 and 245,589
Half scale
Find third proportional to 416,280 and 982,356
Double scale
Find third proportional to 208,142 and 491,183
Similar ratio
Find third proportional to 312,210 and 736,767
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.