Home / 77,261-178,859

Finding the Third Proportional to 77,261 and 178,859

Calculator

Solution

The third proportional to 77,261 and 178,859 is: 414,058.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,261 : 178,859 = 178,859 : x
  2. Step 2: Convert to fraction form
    77,261/178,859 = 178,859/x
  3. Step 3: Cross multiply
    77,261x = 178,859 × 178,859
  4. Step 4: Simplify right side
    77,261x = 31,990,541,881
  5. Step 5: Solve for x
    x = 31,990,541,881/77,261
  6. Step 6: Final answer
    x = 414,058.09

Related Problems

Find third proportional to 38,630.50 and 89,429.50
Half scale
Find third proportional to 154,522 and 357,718
Double scale
Find third proportional to 77,263 and 178,864
Similar ratio
Find third proportional to 115,891.50 and 268,288.50
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.