Home / 257,592-339,540

Finding the Third Proportional to 257,592 and 339,540

Calculator

Solution

The third proportional to 257,592 and 339,540 is: 447,558.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,592 : 339,540 = 339,540 : x
  2. Step 2: Convert to fraction form
    257,592/339,540 = 339,540/x
  3. Step 3: Cross multiply
    257,592x = 339,540 × 339,540
  4. Step 4: Simplify right side
    257,592x = 115,287,411,600
  5. Step 5: Solve for x
    x = 115,287,411,600/257,592
  6. Step 6: Final answer
    x = 447,558.20

Related Problems

Find third proportional to 128,796 and 169,770
Half scale
Find third proportional to 515,184 and 679,080
Double scale
Find third proportional to 257,594 and 339,543
Similar ratio
Find third proportional to 386,388 and 509,310
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.