Home / 290,502.75-396,048

Finding the Third Proportional to 290,502.75 and 396,048

Calculator

Solution

The third proportional to 290,502.75 and 396,048 is: 539,939.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,502.75 : 396,048 = 396,048 : x
  2. Step 2: Convert to fraction form
    290,502.75/396,048 = 396,048/x
  3. Step 3: Cross multiply
    290,502.75x = 396,048 × 396,048
  4. Step 4: Simplify right side
    290,502.75x = 156,854,018,304
  5. Step 5: Solve for x
    x = 156,854,018,304/290,502.75
  6. Step 6: Final answer
    x = 539,939.87

Related Problems

Find third proportional to 145,251.38 and 198,024
Half scale
Find third proportional to 581,005.50 and 792,096
Double scale
Find third proportional to 290,505 and 396,051
Similar ratio
Find third proportional to 435,754.13 and 594,072
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.