Home / 254,357.50-393,487

Finding the Third Proportional to 254,357.50 and 393,487

Calculator

Solution

The third proportional to 254,357.50 and 393,487 is: 608,718.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,357.50 : 393,487 = 393,487 : x
  2. Step 2: Convert to fraction form
    254,357.50/393,487 = 393,487/x
  3. Step 3: Cross multiply
    254,357.50x = 393,487 × 393,487
  4. Step 4: Simplify right side
    254,357.50x = 154,832,019,169
  5. Step 5: Solve for x
    x = 154,832,019,169/254,357.50
  6. Step 6: Final answer
    x = 608,718.12

Related Problems

Find third proportional to 127,178.75 and 196,743.50
Half scale
Find third proportional to 508,715 and 786,974
Double scale
Find third proportional to 254,360 and 393,490
Similar ratio
Find third proportional to 381,536.25 and 590,230.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.