Home / 179,298-390,138

Finding the Third Proportional to 179,298 and 390,138

Calculator

Solution

The third proportional to 179,298 and 390,138 is: 848,908.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,298 : 390,138 = 390,138 : x
  2. Step 2: Convert to fraction form
    179,298/390,138 = 390,138/x
  3. Step 3: Cross multiply
    179,298x = 390,138 × 390,138
  4. Step 4: Simplify right side
    179,298x = 152,207,659,044
  5. Step 5: Solve for x
    x = 152,207,659,044/179,298
  6. Step 6: Final answer
    x = 848,908.85

Related Problems

Find third proportional to 89,649 and 195,069
Half scale
Find third proportional to 358,596 and 780,276
Double scale
Find third proportional to 179,300 and 390,142
Similar ratio
Find third proportional to 268,947 and 585,207
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.