Home / 145,400-314,151

Finding the Third Proportional to 145,400 and 314,151

Calculator

Solution

The third proportional to 145,400 and 314,151 is: 678,754.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,400 : 314,151 = 314,151 : x
  2. Step 2: Convert to fraction form
    145,400/314,151 = 314,151/x
  3. Step 3: Cross multiply
    145,400x = 314,151 × 314,151
  4. Step 4: Simplify right side
    145,400x = 98,690,850,801
  5. Step 5: Solve for x
    x = 98,690,850,801/145,400
  6. Step 6: Final answer
    x = 678,754.13

Related Problems

Find third proportional to 72,700 and 157,075.50
Half scale
Find third proportional to 290,800 and 628,302
Double scale
Find third proportional to 145,402 and 314,155
Similar ratio
Find third proportional to 218,100 and 471,226.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.