Home / 58,981-128,328

Finding the Third Proportional to 58,981 and 128,328

Calculator

Solution

The third proportional to 58,981 and 128,328 is: 279,209.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,981 : 128,328 = 128,328 : x
  2. Step 2: Convert to fraction form
    58,981/128,328 = 128,328/x
  3. Step 3: Cross multiply
    58,981x = 128,328 × 128,328
  4. Step 4: Simplify right side
    58,981x = 16,468,075,584
  5. Step 5: Solve for x
    x = 16,468,075,584/58,981
  6. Step 6: Final answer
    x = 279,209.84

Related Problems

Find third proportional to 29,490.50 and 64,164
Half scale
Find third proportional to 117,962 and 256,656
Double scale
Find third proportional to 58,983 and 128,332
Similar ratio
Find third proportional to 88,471.50 and 192,492
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.