Finding the Fourth Proportional to 316,108.29, 436,269.39 and 207,304.18
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Solution
The fourth proportional to 316,108.29, 436,269.39 and 207,304.18 is: 286,105.97
Step by Step Solution
- Step 1: Write the proportion equation
316,108.29 : 436,269.39 = 207,304.18 : x - Step 2: Convert to fraction form
316,108.29/436,269.39 = 207,304.18/x - Step 3: Cross multiply
316,108.29x = 436,269.39 × 207,304.18 - Step 4: Simplify right side
316,108.29x = 90,440,468,153.05 - Step 5: Solve for x
x = 90,440,468,153.05/316,108.29 - Step 6: Final answer
x = 286,105.97
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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.