Home / 157,636-342,920

Finding the Third Proportional to 157,636 and 342,920

Calculator

Solution

The third proportional to 157,636 and 342,920 is: 745,985.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,636 : 342,920 = 342,920 : x
  2. Step 2: Convert to fraction form
    157,636/342,920 = 342,920/x
  3. Step 3: Cross multiply
    157,636x = 342,920 × 342,920
  4. Step 4: Simplify right side
    157,636x = 117,594,126,400
  5. Step 5: Solve for x
    x = 117,594,126,400/157,636
  6. Step 6: Final answer
    x = 745,985.22

Related Problems

Find third proportional to 78,818 and 171,460
Half scale
Find third proportional to 315,272 and 685,840
Double scale
Find third proportional to 157,638 and 342,924
Similar ratio
Find third proportional to 236,454 and 514,380
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.