Home / 212,850-319,308

Finding the Third Proportional to 212,850 and 319,308

Calculator

Solution

The third proportional to 212,850 and 319,308 is: 479,011.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,850 : 319,308 = 319,308 : x
  2. Step 2: Convert to fraction form
    212,850/319,308 = 319,308/x
  3. Step 3: Cross multiply
    212,850x = 319,308 × 319,308
  4. Step 4: Simplify right side
    212,850x = 101,957,598,864
  5. Step 5: Solve for x
    x = 101,957,598,864/212,850
  6. Step 6: Final answer
    x = 479,011.51

Related Problems

Find third proportional to 106,425 and 159,654
Half scale
Find third proportional to 425,700 and 638,616
Double scale
Find third proportional to 212,852 and 319,311
Similar ratio
Find third proportional to 319,275 and 478,962
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.