Finding the Fourth Proportional to 305,420.13, 421,465.50 and 169,452.63
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Solution
The fourth proportional to 305,420.13, 421,465.50 and 169,452.63 is: 233,836.71
Step by Step Solution
- Step 1: Write the proportion equation
305,420.13 : 421,465.50 = 169,452.63 : x - Step 2: Convert to fraction form
305,420.13/421,465.50 = 169,452.63/x - Step 3: Cross multiply
305,420.13x = 421,465.50 × 169,452.63 - Step 4: Simplify right side
305,420.13x = 71,418,437,429.27 - Step 5: Solve for x
x = 71,418,437,429.27/305,420.13 - Step 6: Final answer
x = 233,836.71
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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.