Home / 121,730-264,890

Finding the Third Proportional to 121,730 and 264,890

Calculator

Solution

The third proportional to 121,730 and 264,890 is: 576,412.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,730 : 264,890 = 264,890 : x
  2. Step 2: Convert to fraction form
    121,730/264,890 = 264,890/x
  3. Step 3: Cross multiply
    121,730x = 264,890 × 264,890
  4. Step 4: Simplify right side
    121,730x = 70,166,712,100
  5. Step 5: Solve for x
    x = 70,166,712,100/121,730
  6. Step 6: Final answer
    x = 576,412.65

Related Problems

Find third proportional to 60,865 and 132,445
Half scale
Find third proportional to 243,460 and 529,780
Double scale
Find third proportional to 121,732 and 264,894
Similar ratio
Find third proportional to 182,595 and 397,335
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.