Home / 148,478-319,932

Finding the Third Proportional to 148,478 and 319,932

Calculator

Solution

The third proportional to 148,478 and 319,932 is: 689,371.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,478 : 319,932 = 319,932 : x
  2. Step 2: Convert to fraction form
    148,478/319,932 = 319,932/x
  3. Step 3: Cross multiply
    148,478x = 319,932 × 319,932
  4. Step 4: Simplify right side
    148,478x = 102,356,484,624
  5. Step 5: Solve for x
    x = 102,356,484,624/148,478
  6. Step 6: Final answer
    x = 689,371.39

Related Problems

Find third proportional to 74,239 and 159,966
Half scale
Find third proportional to 296,956 and 639,864
Double scale
Find third proportional to 148,480 and 319,936
Similar ratio
Find third proportional to 222,717 and 479,898
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.