Home / 90,127-208,638

Finding the Third Proportional to 90,127 and 208,638

Calculator

Solution

The third proportional to 90,127 and 208,638 is: 482,983.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,127 : 208,638 = 208,638 : x
  2. Step 2: Convert to fraction form
    90,127/208,638 = 208,638/x
  3. Step 3: Cross multiply
    90,127x = 208,638 × 208,638
  4. Step 4: Simplify right side
    90,127x = 43,529,815,044
  5. Step 5: Solve for x
    x = 43,529,815,044/90,127
  6. Step 6: Final answer
    x = 482,983.07

Related Problems

Find third proportional to 45,063.50 and 104,319
Half scale
Find third proportional to 180,254 and 417,276
Double scale
Find third proportional to 90,129 and 208,643
Similar ratio
Find third proportional to 135,190.50 and 312,957
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.