Finding the Fourth Proportional to 305,178.96, 421,130.13 and 169,204.98
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Solution
The fourth proportional to 305,178.96, 421,130.13 and 169,204.98 is: 233,493.54
Step by Step Solution
- Step 1: Write the proportion equation
305,178.96 : 421,130.13 = 169,204.98 : x - Step 2: Convert to fraction form
305,178.96/421,130.13 = 169,204.98/x - Step 3: Cross multiply
305,178.96x = 421,130.13 × 169,204.98 - Step 4: Simplify right side
305,178.96x = 71,257,315,224.05 - Step 5: Solve for x
x = 71,257,315,224.05/305,178.96 - Step 6: Final answer
x = 233,493.54
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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.