Home / 145,584-316,808

Finding the Third Proportional to 145,584 and 316,808

Calculator

Solution

The third proportional to 145,584 and 316,808 is: 689,411.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,584 : 316,808 = 316,808 : x
  2. Step 2: Convert to fraction form
    145,584/316,808 = 316,808/x
  3. Step 3: Cross multiply
    145,584x = 316,808 × 316,808
  4. Step 4: Simplify right side
    145,584x = 100,367,308,864
  5. Step 5: Solve for x
    x = 100,367,308,864/145,584
  6. Step 6: Final answer
    x = 689,411.67

Related Problems

Find third proportional to 72,792 and 158,404
Half scale
Find third proportional to 291,168 and 633,616
Double scale
Find third proportional to 145,586 and 316,812
Similar ratio
Find third proportional to 218,376 and 475,212
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.