Finding the Fourth Proportional to 346,938.80, 478,908.05 and 226,109.88
Calculator
Solution
The fourth proportional to 346,938.80, 478,908.05 and 226,109.88 is: 312,117.99
Step by Step Solution
- Step 1: Write the proportion equation
346,938.80 : 478,908.05 = 226,109.88 : x - Step 2: Convert to fraction form
346,938.80/478,908.05 = 226,109.88/x - Step 3: Cross multiply
346,938.80x = 478,908.05 × 226,109.88 - Step 4: Simplify right side
346,938.80x = 108,285,840,585.99 - Step 5: Solve for x
x = 108,285,840,585.99/346,938.80 - Step 6: Final answer
x = 312,117.99
Related Problems
Find fourth proportional to 173,469.40, 239,454.02 and 113,054.94
Half scale
Find fourth proportional to 693,877.59, 957,816.09 and 452,219.76
Double scale
Find fourth proportional to 346,939.80, 478,909.43 and 226,110.88
Similar ratio
Find fourth proportional to 520,408.19, 718,362.07 and 339,164.82
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.