Home / 121,840-282,042

Finding the Third Proportional to 121,840 and 282,042

Calculator

Solution

The third proportional to 121,840 and 282,042 is: 652,886.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,840 : 282,042 = 282,042 : x
  2. Step 2: Convert to fraction form
    121,840/282,042 = 282,042/x
  3. Step 3: Cross multiply
    121,840x = 282,042 × 282,042
  4. Step 4: Simplify right side
    121,840x = 79,547,689,764
  5. Step 5: Solve for x
    x = 79,547,689,764/121,840
  6. Step 6: Final answer
    x = 652,886.49

Related Problems

Find third proportional to 60,920 and 141,021
Half scale
Find third proportional to 243,680 and 564,084
Double scale
Find third proportional to 121,842 and 282,047
Similar ratio
Find third proportional to 182,760 and 423,063
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.