Home / 129,127-281,118

Finding the Third Proportional to 129,127 and 281,118

Calculator

Solution

The third proportional to 129,127 and 281,118 is: 612,012.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,127 : 281,118 = 281,118 : x
  2. Step 2: Convert to fraction form
    129,127/281,118 = 281,118/x
  3. Step 3: Cross multiply
    129,127x = 281,118 × 281,118
  4. Step 4: Simplify right side
    129,127x = 79,027,329,924
  5. Step 5: Solve for x
    x = 79,027,329,924/129,127
  6. Step 6: Final answer
    x = 612,012.44

Related Problems

Find third proportional to 64,563.50 and 140,559
Half scale
Find third proportional to 258,254 and 562,236
Double scale
Find third proportional to 129,129 and 281,122
Similar ratio
Find third proportional to 193,690.50 and 421,677
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.