Home / 240-528

Finding the Third Proportional to 240 and 528

Calculator

Solution

The third proportional to 240 and 528 is: 1,161.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    240 : 528 = 528 : x
  2. Step 2: Convert to fraction form
    240/528 = 528/x
  3. Step 3: Cross multiply
    240x = 528 × 528
  4. Step 4: Simplify right side
    240x = 278,784
  5. Step 5: Solve for x
    x = 278,784/240
  6. Step 6: Final answer
    x = 1,161.60

Related Problems

Find third proportional to 120 and 264
Half scale
Find third proportional to 480 and 1,056
Double scale
Find third proportional to 242 and 532
Similar ratio
Find third proportional to 360 and 792
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.