Home / 254,730-392,783

Finding the Third Proportional to 254,730 and 392,783

Calculator

Solution

The third proportional to 254,730 and 392,783 is: 605,654.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,730 : 392,783 = 392,783 : x
  2. Step 2: Convert to fraction form
    254,730/392,783 = 392,783/x
  3. Step 3: Cross multiply
    254,730x = 392,783 × 392,783
  4. Step 4: Simplify right side
    254,730x = 154,278,485,089
  5. Step 5: Solve for x
    x = 154,278,485,089/254,730
  6. Step 6: Final answer
    x = 605,654.95

Related Problems

Find third proportional to 127,365 and 196,391.50
Half scale
Find third proportional to 509,460 and 785,566
Double scale
Find third proportional to 254,732 and 392,786
Similar ratio
Find third proportional to 382,095 and 589,174.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.