Finding the Third Proportional to 217,122.47 and 478,418.63
Calculator
Solution
The third proportional to 217,122.47 and 478,418.63 is: 1,054,171.79
Step by Step Solution
- Step 1: Write the proportion equation
217,122.47 : 478,418.63 = 478,418.63 : x - Step 2: Convert to fraction form
217,122.47/478,418.63 = 478,418.63/x - Step 3: Cross multiply
217,122.47x = 478,418.63 × 478,418.63 - Step 4: Simplify right side
217,122.47x = 228,884,380,746.89 - Step 5: Solve for x
x = 228,884,380,746.89/217,122.47 - Step 6: Final answer
x = 1,054,171.79
Related Problems
Find third proportional to 108,561.23 and 239,209.31
Half scale
Find third proportional to 434,244.94 and 956,837.25
Double scale
Find third proportional to 217,124 and 478,423
Similar ratio
Find third proportional to 325,683.70 and 717,627.94
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.