Home / 78,670-170,457

Finding the Third Proportional to 78,670 and 170,457

Calculator

Solution

The third proportional to 78,670 and 170,457 is: 369,335.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,670 : 170,457 = 170,457 : x
  2. Step 2: Convert to fraction form
    78,670/170,457 = 170,457/x
  3. Step 3: Cross multiply
    78,670x = 170,457 × 170,457
  4. Step 4: Simplify right side
    78,670x = 29,055,588,849
  5. Step 5: Solve for x
    x = 29,055,588,849/78,670
  6. Step 6: Final answer
    x = 369,335.06

Related Problems

Find third proportional to 39,335 and 85,228.50
Half scale
Find third proportional to 157,340 and 340,914
Double scale
Find third proportional to 78,672 and 170,461
Similar ratio
Find third proportional to 118,005 and 255,685.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.