Home / 332.50-645.50

Finding the Third Proportional to 332.50 and 645.50

Calculator

Solution

The third proportional to 332.50 and 645.50 is: 1,253.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.50 : 645.50 = 645.50 : x
  2. Step 2: Convert to fraction form
    332.50/645.50 = 645.50/x
  3. Step 3: Cross multiply
    332.50x = 645.50 × 645.50
  4. Step 4: Simplify right side
    332.50x = 416,670.25
  5. Step 5: Solve for x
    x = 416,670.25/332.50
  6. Step 6: Final answer
    x = 1,253.14

Related Problems

Find third proportional to 166.25 and 322.75
Half scale
Find third proportional to 665 and 1,291
Double scale
Find third proportional to 335 and 649
Similar ratio
Find third proportional to 498.75 and 968.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.94) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.