Home / 127,440-278,208

Finding the Third Proportional to 127,440 and 278,208

Calculator

Solution

The third proportional to 127,440 and 278,208 is: 607,342.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,440 : 278,208 = 278,208 : x
  2. Step 2: Convert to fraction form
    127,440/278,208 = 278,208/x
  3. Step 3: Cross multiply
    127,440x = 278,208 × 278,208
  4. Step 4: Simplify right side
    127,440x = 77,399,691,264
  5. Step 5: Solve for x
    x = 77,399,691,264/127,440
  6. Step 6: Final answer
    x = 607,342.21

Related Problems

Find third proportional to 63,720 and 139,104
Half scale
Find third proportional to 254,880 and 556,416
Double scale
Find third proportional to 127,442 and 278,212
Similar ratio
Find third proportional to 191,160 and 417,312
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.