Home / 255,358-404,154

Finding the Third Proportional to 255,358 and 404,154

Calculator

Solution

The third proportional to 255,358 and 404,154 is: 639,652.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,358 : 404,154 = 404,154 : x
  2. Step 2: Convert to fraction form
    255,358/404,154 = 404,154/x
  3. Step 3: Cross multiply
    255,358x = 404,154 × 404,154
  4. Step 4: Simplify right side
    255,358x = 163,340,455,716
  5. Step 5: Solve for x
    x = 163,340,455,716/255,358
  6. Step 6: Final answer
    x = 639,652.78

Related Problems

Find third proportional to 127,679 and 202,077
Half scale
Find third proportional to 510,716 and 808,308
Double scale
Find third proportional to 255,360 and 404,157
Similar ratio
Find third proportional to 383,037 and 606,231
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.