Home / 263,176-390,228

Finding the Third Proportional to 263,176 and 390,228

Calculator

Solution

The third proportional to 263,176 and 390,228 is: 578,616.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,176 : 390,228 = 390,228 : x
  2. Step 2: Convert to fraction form
    263,176/390,228 = 390,228/x
  3. Step 3: Cross multiply
    263,176x = 390,228 × 390,228
  4. Step 4: Simplify right side
    263,176x = 152,277,891,984
  5. Step 5: Solve for x
    x = 152,277,891,984/263,176
  6. Step 6: Final answer
    x = 578,616.18

Related Problems

Find third proportional to 131,588 and 195,114
Half scale
Find third proportional to 526,352 and 780,456
Double scale
Find third proportional to 263,178 and 390,231
Similar ratio
Find third proportional to 394,764 and 585,342
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.