Home / 278,051-430,901

Finding the Third Proportional to 278,051 and 430,901

Calculator

Solution

The third proportional to 278,051 and 430,901 is: 667,775.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,051 : 430,901 = 430,901 : x
  2. Step 2: Convert to fraction form
    278,051/430,901 = 430,901/x
  3. Step 3: Cross multiply
    278,051x = 430,901 × 430,901
  4. Step 4: Simplify right side
    278,051x = 185,675,671,801
  5. Step 5: Solve for x
    x = 185,675,671,801/278,051
  6. Step 6: Final answer
    x = 667,775.59

Related Problems

Find third proportional to 139,025.50 and 215,450.50
Half scale
Find third proportional to 556,102 and 861,802
Double scale
Find third proportional to 278,053 and 430,904
Similar ratio
Find third proportional to 417,076.50 and 646,351.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.