Home / 249,850-399,615

Finding the Third Proportional to 249,850 and 399,615

Calculator

Solution

The third proportional to 249,850 and 399,615 is: 639,152.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,850 : 399,615 = 399,615 : x
  2. Step 2: Convert to fraction form
    249,850/399,615 = 399,615/x
  3. Step 3: Cross multiply
    249,850x = 399,615 × 399,615
  4. Step 4: Simplify right side
    249,850x = 159,692,148,225
  5. Step 5: Solve for x
    x = 159,692,148,225/249,850
  6. Step 6: Final answer
    x = 639,152.08

Related Problems

Find third proportional to 124,925 and 199,807.50
Half scale
Find third proportional to 499,700 and 799,230
Double scale
Find third proportional to 249,852 and 399,618
Similar ratio
Find third proportional to 374,775 and 599,422.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.