Finding the Fourth Proportional to 305,379.02, 421,423.56 and 169,412.99
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Solution
The fourth proportional to 305,379.02, 421,423.56 and 169,412.99 is: 233,790.20
Step by Step Solution
- Step 1: Write the proportion equation
305,379.02 : 421,423.56 = 169,412.99 : x - Step 2: Convert to fraction form
305,379.02/421,423.56 = 169,412.99/x - Step 3: Cross multiply
305,379.02x = 421,423.56 × 169,412.99 - Step 4: Simplify right side
305,379.02x = 71,394,623,248.93 - Step 5: Solve for x
x = 71,394,623,248.93/305,379.02 - Step 6: Final answer
x = 233,790.20
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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.