Home / 178,740-277,920

Finding the Third Proportional to 178,740 and 277,920

Calculator

Solution

The third proportional to 178,740 and 277,920 is: 432,133.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,740 : 277,920 = 277,920 : x
  2. Step 2: Convert to fraction form
    178,740/277,920 = 277,920/x
  3. Step 3: Cross multiply
    178,740x = 277,920 × 277,920
  4. Step 4: Simplify right side
    178,740x = 77,239,526,400
  5. Step 5: Solve for x
    x = 77,239,526,400/178,740
  6. Step 6: Final answer
    x = 432,133.41

Related Problems

Find third proportional to 89,370 and 138,960
Half scale
Find third proportional to 357,480 and 555,840
Double scale
Find third proportional to 178,742 and 277,923
Similar ratio
Find third proportional to 268,110 and 416,880
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.