Home / 211,318.88-309,392.16

Finding the Third Proportional to 211,318.88 and 309,392.16

Calculator

Solution

The third proportional to 211,318.88 and 309,392.16 is: 452,981.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,318.88 : 309,392.16 = 309,392.16 : x
  2. Step 2: Convert to fraction form
    211,318.88/309,392.16 = 309,392.16/x
  3. Step 3: Cross multiply
    211,318.88x = 309,392.16 × 309,392.16
  4. Step 4: Simplify right side
    211,318.88x = 95,723,506,349.02
  5. Step 5: Solve for x
    x = 95,723,506,349.02/211,318.88
  6. Step 6: Final answer
    x = 452,981.34

Related Problems

Find third proportional to 105,659.44 and 154,696.08
Half scale
Find third proportional to 422,637.75 and 618,784.31
Double scale
Find third proportional to 211,321 and 309,395
Similar ratio
Find third proportional to 316,978.31 and 464,088.23
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.