Home / 255,023-393,507

Finding the Third Proportional to 255,023 and 393,507

Calculator

Solution

The third proportional to 255,023 and 393,507 is: 607,191.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,023 : 393,507 = 393,507 : x
  2. Step 2: Convert to fraction form
    255,023/393,507 = 393,507/x
  3. Step 3: Cross multiply
    255,023x = 393,507 × 393,507
  4. Step 4: Simplify right side
    255,023x = 154,847,759,049
  5. Step 5: Solve for x
    x = 154,847,759,049/255,023
  6. Step 6: Final answer
    x = 607,191.35

Related Problems

Find third proportional to 127,511.50 and 196,753.50
Half scale
Find third proportional to 510,046 and 787,014
Double scale
Find third proportional to 255,025 and 393,510
Similar ratio
Find third proportional to 382,534.50 and 590,260.50
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.