Home / 219,312-328,088

Finding the Third Proportional to 219,312 and 328,088

Calculator

Solution

The third proportional to 219,312 and 328,088 is: 490,815.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,312 : 328,088 = 328,088 : x
  2. Step 2: Convert to fraction form
    219,312/328,088 = 328,088/x
  3. Step 3: Cross multiply
    219,312x = 328,088 × 328,088
  4. Step 4: Simplify right side
    219,312x = 107,641,735,744
  5. Step 5: Solve for x
    x = 107,641,735,744/219,312
  6. Step 6: Final answer
    x = 490,815.53

Related Problems

Find third proportional to 109,656 and 164,044
Half scale
Find third proportional to 438,624 and 656,176
Double scale
Find third proportional to 219,314 and 328,091
Similar ratio
Find third proportional to 328,968 and 492,132
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.