Finding the Fourth Proportional to 305,934.24, 421,955.28 and 268,142.88
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Solution
The fourth proportional to 305,934.24, 421,955.28 and 268,142.88 is: 369,832.11
Step by Step Solution
- Step 1: Write the proportion equation
305,934.24 : 421,955.28 = 268,142.88 : x - Step 2: Convert to fraction form
305,934.24/421,955.28 = 268,142.88/x - Step 3: Cross multiply
305,934.24x = 421,955.28 × 268,142.88 - Step 4: Simplify right side
305,934.24x = 113,144,304,010.41 - Step 5: Solve for x
x = 113,144,304,010.41/305,934.24 - Step 6: Final answer
x = 369,832.11
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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.