Home / 257,382-404,169

Finding the Third Proportional to 257,382 and 404,169

Calculator

Solution

The third proportional to 257,382 and 404,169 is: 634,669.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,382 : 404,169 = 404,169 : x
  2. Step 2: Convert to fraction form
    257,382/404,169 = 404,169/x
  3. Step 3: Cross multiply
    257,382x = 404,169 × 404,169
  4. Step 4: Simplify right side
    257,382x = 163,352,580,561
  5. Step 5: Solve for x
    x = 163,352,580,561/257,382
  6. Step 6: Final answer
    x = 634,669.79

Related Problems

Find third proportional to 128,691 and 202,084.50
Half scale
Find third proportional to 514,764 and 808,338
Double scale
Find third proportional to 257,384 and 404,172
Similar ratio
Find third proportional to 386,073 and 606,253.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.