Home / 77,808-170,688

Finding the Third Proportional to 77,808 and 170,688

Calculator

Solution

The third proportional to 77,808 and 170,688 is: 374,439.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,808 : 170,688 = 170,688 : x
  2. Step 2: Convert to fraction form
    77,808/170,688 = 170,688/x
  3. Step 3: Cross multiply
    77,808x = 170,688 × 170,688
  4. Step 4: Simplify right side
    77,808x = 29,134,393,344
  5. Step 5: Solve for x
    x = 29,134,393,344/77,808
  6. Step 6: Final answer
    x = 374,439.56

Related Problems

Find third proportional to 38,904 and 85,344
Half scale
Find third proportional to 155,616 and 341,376
Double scale
Find third proportional to 77,810 and 170,692
Similar ratio
Find third proportional to 116,712 and 256,032
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.