Home / 132,440-288,680

Finding the Third Proportional to 132,440 and 288,680

Calculator

Solution

The third proportional to 132,440 and 288,680 is: 629,236.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,440 : 288,680 = 288,680 : x
  2. Step 2: Convert to fraction form
    132,440/288,680 = 288,680/x
  3. Step 3: Cross multiply
    132,440x = 288,680 × 288,680
  4. Step 4: Simplify right side
    132,440x = 83,336,142,400
  5. Step 5: Solve for x
    x = 83,336,142,400/132,440
  6. Step 6: Final answer
    x = 629,236.96

Related Problems

Find third proportional to 66,220 and 144,340
Half scale
Find third proportional to 264,880 and 577,360
Double scale
Find third proportional to 132,442 and 288,684
Similar ratio
Find third proportional to 198,660 and 433,020
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.