Finding the Fourth Proportional to 312,195.12, 430,536.82 and 207,233.38
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Solution
The fourth proportional to 312,195.12, 430,536.82 and 207,233.38 is: 285,787.94
Step by Step Solution
- Step 1: Write the proportion equation
312,195.12 : 430,536.82 = 207,233.38 : x - Step 2: Convert to fraction form
312,195.12/430,536.82 = 207,233.38/x - Step 3: Cross multiply
312,195.12x = 430,536.82 × 207,233.38 - Step 4: Simplify right side
312,195.12x = 89,221,600,423.05 - Step 5: Solve for x
x = 89,221,600,423.05/312,195.12 - Step 6: Final answer
x = 285,787.94
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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.