Home / 210,040-319,440

Finding the Third Proportional to 210,040 and 319,440

Calculator

Solution

The third proportional to 210,040 and 319,440 is: 485,821.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,040 : 319,440 = 319,440 : x
  2. Step 2: Convert to fraction form
    210,040/319,440 = 319,440/x
  3. Step 3: Cross multiply
    210,040x = 319,440 × 319,440
  4. Step 4: Simplify right side
    210,040x = 102,041,913,600
  5. Step 5: Solve for x
    x = 102,041,913,600/210,040
  6. Step 6: Final answer
    x = 485,821.34

Related Problems

Find third proportional to 105,020 and 159,720
Half scale
Find third proportional to 420,080 and 638,880
Double scale
Find third proportional to 210,042 and 319,443
Similar ratio
Find third proportional to 315,060 and 479,160
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.