Home / 255,029-393,516

Finding the Third Proportional to 255,029 and 393,516

Calculator

Solution

The third proportional to 255,029 and 393,516 is: 607,204.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,029 : 393,516 = 393,516 : x
  2. Step 2: Convert to fraction form
    255,029/393,516 = 393,516/x
  3. Step 3: Cross multiply
    255,029x = 393,516 × 393,516
  4. Step 4: Simplify right side
    255,029x = 154,854,842,256
  5. Step 5: Solve for x
    x = 154,854,842,256/255,029
  6. Step 6: Final answer
    x = 607,204.84

Related Problems

Find third proportional to 127,514.50 and 196,758
Half scale
Find third proportional to 510,058 and 787,032
Double scale
Find third proportional to 255,031 and 393,519
Similar ratio
Find third proportional to 382,543.50 and 590,274
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.