Home / 178,298-391,590

Finding the Third Proportional to 178,298 and 391,590

Calculator

Solution

The third proportional to 178,298 and 391,590 is: 860,036.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,298 : 391,590 = 391,590 : x
  2. Step 2: Convert to fraction form
    178,298/391,590 = 391,590/x
  3. Step 3: Cross multiply
    178,298x = 391,590 × 391,590
  4. Step 4: Simplify right side
    178,298x = 153,342,728,100
  5. Step 5: Solve for x
    x = 153,342,728,100/178,298
  6. Step 6: Final answer
    x = 860,036.16

Related Problems

Find third proportional to 89,149 and 195,795
Half scale
Find third proportional to 356,596 and 783,180
Double scale
Find third proportional to 178,300 and 391,594
Similar ratio
Find third proportional to 267,447 and 587,385
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.