Home / 145,389-308,040

Finding the Third Proportional to 145,389 and 308,040

Calculator

Solution

The third proportional to 145,389 and 308,040 is: 652,653.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,389 : 308,040 = 308,040 : x
  2. Step 2: Convert to fraction form
    145,389/308,040 = 308,040/x
  3. Step 3: Cross multiply
    145,389x = 308,040 × 308,040
  4. Step 4: Simplify right side
    145,389x = 94,888,641,600
  5. Step 5: Solve for x
    x = 94,888,641,600/145,389
  6. Step 6: Final answer
    x = 652,653.51

Related Problems

Find third proportional to 72,694.50 and 154,020
Half scale
Find third proportional to 290,778 and 616,080
Double scale
Find third proportional to 145,391 and 308,044
Similar ratio
Find third proportional to 218,083.50 and 462,060
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.