Home / 280,076-430,497

Finding the Third Proportional to 280,076 and 430,497

Calculator

Solution

The third proportional to 280,076 and 430,497 is: 661,704.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,076 : 430,497 = 430,497 : x
  2. Step 2: Convert to fraction form
    280,076/430,497 = 430,497/x
  3. Step 3: Cross multiply
    280,076x = 430,497 × 430,497
  4. Step 4: Simplify right side
    280,076x = 185,327,667,009
  5. Step 5: Solve for x
    x = 185,327,667,009/280,076
  6. Step 6: Final answer
    x = 661,704.92

Related Problems

Find third proportional to 140,038 and 215,248.50
Half scale
Find third proportional to 560,152 and 860,994
Double scale
Find third proportional to 280,078 and 430,500
Similar ratio
Find third proportional to 420,114 and 645,745.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.