Home / 147,095-317,515

Finding the Third Proportional to 147,095 and 317,515

Calculator

Solution

The third proportional to 147,095 and 317,515 is: 685,378.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,095 : 317,515 = 317,515 : x
  2. Step 2: Convert to fraction form
    147,095/317,515 = 317,515/x
  3. Step 3: Cross multiply
    147,095x = 317,515 × 317,515
  4. Step 4: Simplify right side
    147,095x = 100,815,775,225
  5. Step 5: Solve for x
    x = 100,815,775,225/147,095
  6. Step 6: Final answer
    x = 685,378.67

Related Problems

Find third proportional to 73,547.50 and 158,757.50
Half scale
Find third proportional to 294,190 and 635,030
Double scale
Find third proportional to 147,097 and 317,519
Similar ratio
Find third proportional to 220,642.50 and 476,272.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.