Home / 178,254-278,318

Finding the Third Proportional to 178,254 and 278,318

Calculator

Solution

The third proportional to 178,254 and 278,318 is: 434,553.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,254 : 278,318 = 278,318 : x
  2. Step 2: Convert to fraction form
    178,254/278,318 = 278,318/x
  3. Step 3: Cross multiply
    178,254x = 278,318 × 278,318
  4. Step 4: Simplify right side
    178,254x = 77,460,909,124
  5. Step 5: Solve for x
    x = 77,460,909,124/178,254
  6. Step 6: Final answer
    x = 434,553.55

Related Problems

Find third proportional to 89,127 and 139,159
Half scale
Find third proportional to 356,508 and 556,636
Double scale
Find third proportional to 178,256 and 278,321
Similar ratio
Find third proportional to 267,381 and 417,477
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.