Home / 146,239-318,920

Finding the Third Proportional to 146,239 and 318,920

Calculator

Solution

The third proportional to 146,239 and 318,920 is: 695,505.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,239 : 318,920 = 318,920 : x
  2. Step 2: Convert to fraction form
    146,239/318,920 = 318,920/x
  3. Step 3: Cross multiply
    146,239x = 318,920 × 318,920
  4. Step 4: Simplify right side
    146,239x = 101,709,966,400
  5. Step 5: Solve for x
    x = 101,709,966,400/146,239
  6. Step 6: Final answer
    x = 695,505.07

Related Problems

Find third proportional to 73,119.50 and 159,460
Half scale
Find third proportional to 292,478 and 637,840
Double scale
Find third proportional to 146,241 and 318,924
Similar ratio
Find third proportional to 219,358.50 and 478,380
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.