Home / 257,688-385,332

Finding the Third Proportional to 257,688 and 385,332

Calculator

Solution

The third proportional to 257,688 and 385,332 is: 576,203.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,688 : 385,332 = 385,332 : x
  2. Step 2: Convert to fraction form
    257,688/385,332 = 385,332/x
  3. Step 3: Cross multiply
    257,688x = 385,332 × 385,332
  4. Step 4: Simplify right side
    257,688x = 148,480,750,224
  5. Step 5: Solve for x
    x = 148,480,750,224/257,688
  6. Step 6: Final answer
    x = 576,203.59

Related Problems

Find third proportional to 128,844 and 192,666
Half scale
Find third proportional to 515,376 and 770,664
Double scale
Find third proportional to 257,690 and 385,335
Similar ratio
Find third proportional to 386,532 and 577,998
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.