Home / 178,272-379,440

Finding the Third Proportional to 178,272 and 379,440

Calculator

Solution

The third proportional to 178,272 and 379,440 is: 807,612.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,272 : 379,440 = 379,440 : x
  2. Step 2: Convert to fraction form
    178,272/379,440 = 379,440/x
  3. Step 3: Cross multiply
    178,272x = 379,440 × 379,440
  4. Step 4: Simplify right side
    178,272x = 143,974,713,600
  5. Step 5: Solve for x
    x = 143,974,713,600/178,272
  6. Step 6: Final answer
    x = 807,612.60

Related Problems

Find third proportional to 89,136 and 189,720
Half scale
Find third proportional to 356,544 and 758,880
Double scale
Find third proportional to 178,274 and 379,444
Similar ratio
Find third proportional to 267,408 and 569,160
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.