Home / 296,384-389,280

Finding the Third Proportional to 296,384 and 389,280

Calculator

Solution

The third proportional to 296,384 and 389,280 is: 511,292.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,384 : 389,280 = 389,280 : x
  2. Step 2: Convert to fraction form
    296,384/389,280 = 389,280/x
  3. Step 3: Cross multiply
    296,384x = 389,280 × 389,280
  4. Step 4: Simplify right side
    296,384x = 151,538,918,400
  5. Step 5: Solve for x
    x = 151,538,918,400/296,384
  6. Step 6: Final answer
    x = 511,292.51

Related Problems

Find third proportional to 148,192 and 194,640
Half scale
Find third proportional to 592,768 and 778,560
Double scale
Find third proportional to 296,386 and 389,283
Similar ratio
Find third proportional to 444,576 and 583,920
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.