Finding the Fourth Proportional to 305,854.10, 458,781.15 and 211,375.70
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Solution
The fourth proportional to 305,854.10, 458,781.15 and 211,375.70 is: 317,063.55
Step by Step Solution
- Step 1: Write the proportion equation
305,854.10 : 458,781.15 = 211,375.70 : x - Step 2: Convert to fraction form
305,854.10/458,781.15 = 211,375.70/x - Step 3: Cross multiply
305,854.10x = 458,781.15 × 211,375.70 - Step 4: Simplify right side
305,854.10x = 96,975,186,728.06 - Step 5: Solve for x
x = 96,975,186,728.06/305,854.10 - Step 6: Final answer
x = 317,063.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.