Home / 129,382-281,544

Finding the Third Proportional to 129,382 and 281,544

Calculator

Solution

The third proportional to 129,382 and 281,544 is: 612,658.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,382 : 281,544 = 281,544 : x
  2. Step 2: Convert to fraction form
    129,382/281,544 = 281,544/x
  3. Step 3: Cross multiply
    129,382x = 281,544 × 281,544
  4. Step 4: Simplify right side
    129,382x = 79,267,023,936
  5. Step 5: Solve for x
    x = 79,267,023,936/129,382
  6. Step 6: Final answer
    x = 612,658.82

Related Problems

Find third proportional to 64,691 and 140,772
Half scale
Find third proportional to 258,764 and 563,088
Double scale
Find third proportional to 129,384 and 281,548
Similar ratio
Find third proportional to 194,073 and 422,316
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.