Home / 166,080-257,280

Finding the Third Proportional to 166,080 and 257,280

Calculator

Solution

The third proportional to 166,080 and 257,280 is: 398,560.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,080 : 257,280 = 257,280 : x
  2. Step 2: Convert to fraction form
    166,080/257,280 = 257,280/x
  3. Step 3: Cross multiply
    166,080x = 257,280 × 257,280
  4. Step 4: Simplify right side
    166,080x = 66,192,998,400
  5. Step 5: Solve for x
    x = 66,192,998,400/166,080
  6. Step 6: Final answer
    x = 398,560.92

Related Problems

Find third proportional to 83,040 and 128,640
Half scale
Find third proportional to 332,160 and 514,560
Double scale
Find third proportional to 166,082 and 257,283
Similar ratio
Find third proportional to 249,120 and 385,920
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.