Home / 65,480-139,547

Finding the Third Proportional to 65,480 and 139,547

Calculator

Solution

The third proportional to 65,480 and 139,547 is: 297,394.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,480 : 139,547 = 139,547 : x
  2. Step 2: Convert to fraction form
    65,480/139,547 = 139,547/x
  3. Step 3: Cross multiply
    65,480x = 139,547 × 139,547
  4. Step 4: Simplify right side
    65,480x = 19,473,365,209
  5. Step 5: Solve for x
    x = 19,473,365,209/65,480
  6. Step 6: Final answer
    x = 297,394.09

Related Problems

Find third proportional to 32,740 and 69,773.50
Half scale
Find third proportional to 130,960 and 279,094
Double scale
Find third proportional to 65,482 and 139,551
Similar ratio
Find third proportional to 98,220 and 209,320.50
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.