Home / 208,335-431,439

Finding the Third Proportional to 208,335 and 431,439

Calculator

Solution

The third proportional to 208,335 and 431,439 is: 893,462.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,335 : 431,439 = 431,439 : x
  2. Step 2: Convert to fraction form
    208,335/431,439 = 431,439/x
  3. Step 3: Cross multiply
    208,335x = 431,439 × 431,439
  4. Step 4: Simplify right side
    208,335x = 186,139,610,721
  5. Step 5: Solve for x
    x = 186,139,610,721/208,335
  6. Step 6: Final answer
    x = 893,462.98

Related Problems

Find third proportional to 104,167.50 and 215,719.50
Half scale
Find third proportional to 416,670 and 862,878
Double scale
Find third proportional to 208,337 and 431,443
Similar ratio
Find third proportional to 312,502.50 and 647,158.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.