Home / 128,316-201,572

Finding the Third Proportional to 128,316 and 201,572

Calculator

Solution

The third proportional to 128,316 and 201,572 is: 316,650.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,316 : 201,572 = 201,572 : x
  2. Step 2: Convert to fraction form
    128,316/201,572 = 201,572/x
  3. Step 3: Cross multiply
    128,316x = 201,572 × 201,572
  4. Step 4: Simplify right side
    128,316x = 40,631,271,184
  5. Step 5: Solve for x
    x = 40,631,271,184/128,316
  6. Step 6: Final answer
    x = 316,650.08

Related Problems

Find third proportional to 64,158 and 100,786
Half scale
Find third proportional to 256,632 and 403,144
Double scale
Find third proportional to 128,318 and 201,575
Similar ratio
Find third proportional to 192,474 and 302,358
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.