Home / 153,420-328,872

Finding the Third Proportional to 153,420 and 328,872

Calculator

Solution

The third proportional to 153,420 and 328,872 is: 704,971.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,420 : 328,872 = 328,872 : x
  2. Step 2: Convert to fraction form
    153,420/328,872 = 328,872/x
  3. Step 3: Cross multiply
    153,420x = 328,872 × 328,872
  4. Step 4: Simplify right side
    153,420x = 108,156,792,384
  5. Step 5: Solve for x
    x = 108,156,792,384/153,420
  6. Step 6: Final answer
    x = 704,971.92

Related Problems

Find third proportional to 76,710 and 164,436
Half scale
Find third proportional to 306,840 and 657,744
Double scale
Find third proportional to 153,422 and 328,876
Similar ratio
Find third proportional to 230,130 and 493,308
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.