Home / 133,142-289,792

Finding the Third Proportional to 133,142 and 289,792

Calculator

Solution

The third proportional to 133,142 and 289,792 is: 630,750.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,142 : 289,792 = 289,792 : x
  2. Step 2: Convert to fraction form
    133,142/289,792 = 289,792/x
  3. Step 3: Cross multiply
    133,142x = 289,792 × 289,792
  4. Step 4: Simplify right side
    133,142x = 83,979,403,264
  5. Step 5: Solve for x
    x = 83,979,403,264/133,142
  6. Step 6: Final answer
    x = 630,750.65

Related Problems

Find third proportional to 66,571 and 144,896
Half scale
Find third proportional to 266,284 and 579,584
Double scale
Find third proportional to 133,144 and 289,796
Similar ratio
Find third proportional to 199,713 and 434,688
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.