Home / 257,064-402,006

Finding the Third Proportional to 257,064 and 402,006

Calculator

Solution

The third proportional to 257,064 and 402,006 is: 628,671.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,064 : 402,006 = 402,006 : x
  2. Step 2: Convert to fraction form
    257,064/402,006 = 402,006/x
  3. Step 3: Cross multiply
    257,064x = 402,006 × 402,006
  4. Step 4: Simplify right side
    257,064x = 161,608,824,036
  5. Step 5: Solve for x
    x = 161,608,824,036/257,064
  6. Step 6: Final answer
    x = 628,671.55

Related Problems

Find third proportional to 128,532 and 201,003
Half scale
Find third proportional to 514,128 and 804,012
Double scale
Find third proportional to 257,066 and 402,009
Similar ratio
Find third proportional to 385,596 and 603,009
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.