Home / 77,280-163,005

Finding the Third Proportional to 77,280 and 163,005

Calculator

Solution

The third proportional to 77,280 and 163,005 is: 343,822.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,280 : 163,005 = 163,005 : x
  2. Step 2: Convert to fraction form
    77,280/163,005 = 163,005/x
  3. Step 3: Cross multiply
    77,280x = 163,005 × 163,005
  4. Step 4: Simplify right side
    77,280x = 26,570,630,025
  5. Step 5: Solve for x
    x = 26,570,630,025/77,280
  6. Step 6: Final answer
    x = 343,822.85

Related Problems

Find third proportional to 38,640 and 81,502.50
Half scale
Find third proportional to 154,560 and 326,010
Double scale
Find third proportional to 77,282 and 163,009
Similar ratio
Find third proportional to 115,920 and 244,507.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.