Home / 253,455-354,342

Finding the Third Proportional to 253,455 and 354,342

Calculator

Solution

The third proportional to 253,455 and 354,342 is: 495,386.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,455 : 354,342 = 354,342 : x
  2. Step 2: Convert to fraction form
    253,455/354,342 = 354,342/x
  3. Step 3: Cross multiply
    253,455x = 354,342 × 354,342
  4. Step 4: Simplify right side
    253,455x = 125,558,252,964
  5. Step 5: Solve for x
    x = 125,558,252,964/253,455
  6. Step 6: Final answer
    x = 495,386.77

Related Problems

Find third proportional to 126,727.50 and 177,171
Half scale
Find third proportional to 506,910 and 708,684
Double scale
Find third proportional to 253,457 and 354,345
Similar ratio
Find third proportional to 380,182.50 and 531,513
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.