Finding the Fourth Proportional to 305,485.20, 421,558.50 and 169,525.08
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Solution
The fourth proportional to 305,485.20, 421,558.50 and 169,525.08 is: 233,938.46
Step by Step Solution
- Step 1: Write the proportion equation
305,485.20 : 421,558.50 = 169,525.08 : x - Step 2: Convert to fraction form
305,485.20/421,558.50 = 169,525.08/x - Step 3: Cross multiply
305,485.20x = 421,558.50 × 169,525.08 - Step 4: Simplify right side
305,485.20x = 71,464,738,437.18 - Step 5: Solve for x
x = 71,464,738,437.18/305,485.20 - Step 6: Final answer
x = 233,938.46
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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.