Home / 190,487-418,342

Finding the Third Proportional to 190,487 and 418,342

Calculator

Solution

The third proportional to 190,487 and 418,342 is: 918,750.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,487 : 418,342 = 418,342 : x
  2. Step 2: Convert to fraction form
    190,487/418,342 = 418,342/x
  3. Step 3: Cross multiply
    190,487x = 418,342 × 418,342
  4. Step 4: Simplify right side
    190,487x = 175,010,028,964
  5. Step 5: Solve for x
    x = 175,010,028,964/190,487
  6. Step 6: Final answer
    x = 918,750.51

Related Problems

Find third proportional to 95,243.50 and 209,171
Half scale
Find third proportional to 380,974 and 836,684
Double scale
Find third proportional to 190,489 and 418,346
Similar ratio
Find third proportional to 285,730.50 and 627,513
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.