Home / 258,068-405,534

Finding the Third Proportional to 258,068 and 405,534

Calculator

Solution

The third proportional to 258,068 and 405,534 is: 637,265.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,068 : 405,534 = 405,534 : x
  2. Step 2: Convert to fraction form
    258,068/405,534 = 405,534/x
  3. Step 3: Cross multiply
    258,068x = 405,534 × 405,534
  4. Step 4: Simplify right side
    258,068x = 164,457,825,156
  5. Step 5: Solve for x
    x = 164,457,825,156/258,068
  6. Step 6: Final answer
    x = 637,265.47

Related Problems

Find third proportional to 129,034 and 202,767
Half scale
Find third proportional to 516,136 and 811,068
Double scale
Find third proportional to 258,070 and 405,537
Similar ratio
Find third proportional to 387,102 and 608,301
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.