Finding the Third Proportional to 270,644.63 and 420,698.81
Calculator
Solution
The third proportional to 270,644.63 and 420,698.81 is: 653,947.92
Step by Step Solution
- Step 1: Write the proportion equation
270,644.63 : 420,698.81 = 420,698.81 : x - Step 2: Convert to fraction form
270,644.63/420,698.81 = 420,698.81/x - Step 3: Cross multiply
270,644.63x = 420,698.81 × 420,698.81 - Step 4: Simplify right side
270,644.63x = 176,987,490,838.91 - Step 5: Solve for x
x = 176,987,490,838.91/270,644.63 - Step 6: Final answer
x = 653,947.92
Related Problems
Find third proportional to 135,322.31 and 210,349.41
Half scale
Find third proportional to 541,289.25 and 841,397.63
Double scale
Find third proportional to 270,647 and 420,702
Similar ratio
Find third proportional to 405,966.94 and 631,048.22
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.