Home / 128,700-283,596

Finding the Third Proportional to 128,700 and 283,596

Calculator

Solution

The third proportional to 128,700 and 283,596 is: 624,916.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,700 : 283,596 = 283,596 : x
  2. Step 2: Convert to fraction form
    128,700/283,596 = 283,596/x
  3. Step 3: Cross multiply
    128,700x = 283,596 × 283,596
  4. Step 4: Simplify right side
    128,700x = 80,426,691,216
  5. Step 5: Solve for x
    x = 80,426,691,216/128,700
  6. Step 6: Final answer
    x = 624,916.02

Related Problems

Find third proportional to 64,350 and 141,798
Half scale
Find third proportional to 257,400 and 567,192
Double scale
Find third proportional to 128,702 and 283,600
Similar ratio
Find third proportional to 193,050 and 425,394
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.