Home / 306,478-475,755

Finding the Third Proportional to 306,478 and 475,755

Calculator

Solution

The third proportional to 306,478 and 475,755 is: 738,528.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,478 : 475,755 = 475,755 : x
  2. Step 2: Convert to fraction form
    306,478/475,755 = 475,755/x
  3. Step 3: Cross multiply
    306,478x = 475,755 × 475,755
  4. Step 4: Simplify right side
    306,478x = 226,342,820,025
  5. Step 5: Solve for x
    x = 226,342,820,025/306,478
  6. Step 6: Final answer
    x = 738,528.77

Related Problems

Find third proportional to 153,239 and 237,877.50
Half scale
Find third proportional to 612,956 and 951,510
Double scale
Find third proportional to 306,480 and 475,758
Similar ratio
Find third proportional to 459,717 and 713,632.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.