Home / 188,672-278,688

Finding the Third Proportional to 188,672 and 278,688

Calculator

Solution

The third proportional to 188,672 and 278,688 is: 411,650.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,672 : 278,688 = 278,688 : x
  2. Step 2: Convert to fraction form
    188,672/278,688 = 278,688/x
  3. Step 3: Cross multiply
    188,672x = 278,688 × 278,688
  4. Step 4: Simplify right side
    188,672x = 77,667,001,344
  5. Step 5: Solve for x
    x = 77,667,001,344/188,672
  6. Step 6: Final answer
    x = 411,650.91

Related Problems

Find third proportional to 94,336 and 139,344
Half scale
Find third proportional to 377,344 and 557,376
Double scale
Find third proportional to 188,674 and 278,691
Similar ratio
Find third proportional to 283,008 and 418,032
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.