Home / 158,511-330,117

Finding the Third Proportional to 158,511 and 330,117

Calculator

Solution

The third proportional to 158,511 and 330,117 is: 687,505.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,511 : 330,117 = 330,117 : x
  2. Step 2: Convert to fraction form
    158,511/330,117 = 330,117/x
  3. Step 3: Cross multiply
    158,511x = 330,117 × 330,117
  4. Step 4: Simplify right side
    158,511x = 108,977,233,689
  5. Step 5: Solve for x
    x = 108,977,233,689/158,511
  6. Step 6: Final answer
    x = 687,505.81

Related Problems

Find third proportional to 79,255.50 and 165,058.50
Half scale
Find third proportional to 317,022 and 660,234
Double scale
Find third proportional to 158,513 and 330,121
Similar ratio
Find third proportional to 237,766.50 and 495,175.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.