Home / 138,460-302,545

Finding the Third Proportional to 138,460 and 302,545

Calculator

Solution

The third proportional to 138,460 and 302,545 is: 661,082.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,460 : 302,545 = 302,545 : x
  2. Step 2: Convert to fraction form
    138,460/302,545 = 302,545/x
  3. Step 3: Cross multiply
    138,460x = 302,545 × 302,545
  4. Step 4: Simplify right side
    138,460x = 91,533,477,025
  5. Step 5: Solve for x
    x = 91,533,477,025/138,460
  6. Step 6: Final answer
    x = 661,082.46

Related Problems

Find third proportional to 69,230 and 151,272.50
Half scale
Find third proportional to 276,920 and 605,090
Double scale
Find third proportional to 138,462 and 302,549
Similar ratio
Find third proportional to 207,690 and 453,817.50
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.