Home / 278,972-358,194

Finding the Third Proportional to 278,972 and 358,194

Calculator

Solution

The third proportional to 278,972 and 358,194 is: 459,913.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,972 : 358,194 = 358,194 : x
  2. Step 2: Convert to fraction form
    278,972/358,194 = 358,194/x
  3. Step 3: Cross multiply
    278,972x = 358,194 × 358,194
  4. Step 4: Simplify right side
    278,972x = 128,302,941,636
  5. Step 5: Solve for x
    x = 128,302,941,636/278,972
  6. Step 6: Final answer
    x = 459,913.33

Related Problems

Find third proportional to 139,486 and 179,097
Half scale
Find third proportional to 557,944 and 716,388
Double scale
Find third proportional to 278,974 and 358,197
Similar ratio
Find third proportional to 418,458 and 537,291
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.