Home / 187,972-406,920

Finding the Third Proportional to 187,972 and 406,920

Calculator

Solution

The third proportional to 187,972 and 406,920 is: 880,896.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,972 : 406,920 = 406,920 : x
  2. Step 2: Convert to fraction form
    187,972/406,920 = 406,920/x
  3. Step 3: Cross multiply
    187,972x = 406,920 × 406,920
  4. Step 4: Simplify right side
    187,972x = 165,583,886,400
  5. Step 5: Solve for x
    x = 165,583,886,400/187,972
  6. Step 6: Final answer
    x = 880,896.55

Related Problems

Find third proportional to 93,986 and 203,460
Half scale
Find third proportional to 375,944 and 813,840
Double scale
Find third proportional to 187,974 and 406,924
Similar ratio
Find third proportional to 281,958 and 610,380
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.