Home / 128,548-265,296

Finding the Third Proportional to 128,548 and 265,296

Calculator

Solution

The third proportional to 128,548 and 265,296 is: 547,515.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,548 : 265,296 = 265,296 : x
  2. Step 2: Convert to fraction form
    128,548/265,296 = 265,296/x
  3. Step 3: Cross multiply
    128,548x = 265,296 × 265,296
  4. Step 4: Simplify right side
    128,548x = 70,381,967,616
  5. Step 5: Solve for x
    x = 70,381,967,616/128,548
  6. Step 6: Final answer
    x = 547,515.07

Related Problems

Find third proportional to 64,274 and 132,648
Half scale
Find third proportional to 257,096 and 530,592
Double scale
Find third proportional to 128,550 and 265,300
Similar ratio
Find third proportional to 192,822 and 397,944
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.