Home / 135,160-287,816

Finding the Third Proportional to 135,160 and 287,816

Calculator

Solution

The third proportional to 135,160 and 287,816 is: 612,888.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,160 : 287,816 = 287,816 : x
  2. Step 2: Convert to fraction form
    135,160/287,816 = 287,816/x
  3. Step 3: Cross multiply
    135,160x = 287,816 × 287,816
  4. Step 4: Simplify right side
    135,160x = 82,838,049,856
  5. Step 5: Solve for x
    x = 82,838,049,856/135,160
  6. Step 6: Final answer
    x = 612,888.80

Related Problems

Find third proportional to 67,580 and 143,908
Half scale
Find third proportional to 270,320 and 575,632
Double scale
Find third proportional to 135,162 and 287,820
Similar ratio
Find third proportional to 202,740 and 431,724
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.