Home / 205,217-288,787

Finding the Third Proportional to 205,217 and 288,787

Calculator

Solution

The third proportional to 205,217 and 288,787 is: 406,389.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,217 : 288,787 = 288,787 : x
  2. Step 2: Convert to fraction form
    205,217/288,787 = 288,787/x
  3. Step 3: Cross multiply
    205,217x = 288,787 × 288,787
  4. Step 4: Simplify right side
    205,217x = 83,397,931,369
  5. Step 5: Solve for x
    x = 83,397,931,369/205,217
  6. Step 6: Final answer
    x = 406,389.00

Related Problems

Find third proportional to 102,608.50 and 144,393.50
Half scale
Find third proportional to 410,434 and 577,574
Double scale
Find third proportional to 205,219 and 288,790
Similar ratio
Find third proportional to 307,825.50 and 433,180.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.