Home / 157,776-339,609

Finding the Third Proportional to 157,776 and 339,609

Calculator

Solution

The third proportional to 157,776 and 339,609 is: 731,000.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,776 : 339,609 = 339,609 : x
  2. Step 2: Convert to fraction form
    157,776/339,609 = 339,609/x
  3. Step 3: Cross multiply
    157,776x = 339,609 × 339,609
  4. Step 4: Simplify right side
    157,776x = 115,334,272,881
  5. Step 5: Solve for x
    x = 115,334,272,881/157,776
  6. Step 6: Final answer
    x = 731,000.11

Related Problems

Find third proportional to 78,888 and 169,804.50
Half scale
Find third proportional to 315,552 and 679,218
Double scale
Find third proportional to 157,778 and 339,613
Similar ratio
Find third proportional to 236,664 and 509,413.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.