Home / 142,804-313,630

Finding the Third Proportional to 142,804 and 313,630

Calculator

Solution

The third proportional to 142,804 and 313,630 is: 688,802.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,804 : 313,630 = 313,630 : x
  2. Step 2: Convert to fraction form
    142,804/313,630 = 313,630/x
  3. Step 3: Cross multiply
    142,804x = 313,630 × 313,630
  4. Step 4: Simplify right side
    142,804x = 98,363,776,900
  5. Step 5: Solve for x
    x = 98,363,776,900/142,804
  6. Step 6: Final answer
    x = 688,802.67

Related Problems

Find third proportional to 71,402 and 156,815
Half scale
Find third proportional to 285,608 and 627,260
Double scale
Find third proportional to 142,806 and 313,634
Similar ratio
Find third proportional to 214,206 and 470,445
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.