Home / 66,915-148,590

Finding the Third Proportional to 66,915 and 148,590

Calculator

Solution

The third proportional to 66,915 and 148,590 is: 329,955.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,915 : 148,590 = 148,590 : x
  2. Step 2: Convert to fraction form
    66,915/148,590 = 148,590/x
  3. Step 3: Cross multiply
    66,915x = 148,590 × 148,590
  4. Step 4: Simplify right side
    66,915x = 22,078,988,100
  5. Step 5: Solve for x
    x = 22,078,988,100/66,915
  6. Step 6: Final answer
    x = 329,955.74

Related Problems

Find third proportional to 33,457.50 and 74,295
Half scale
Find third proportional to 133,830 and 297,180
Double scale
Find third proportional to 66,917 and 148,594
Similar ratio
Find third proportional to 100,372.50 and 222,885
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.