Finding the Fourth Proportional to 399,944.62, 551,938.31 and 218,668.62
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Solution
The fourth proportional to 399,944.62, 551,938.31 and 218,668.62 is: 301,770.75
Step by Step Solution
- Step 1: Write the proportion equation
399,944.62 : 551,938.31 = 218,668.62 : x - Step 2: Convert to fraction form
399,944.62/551,938.31 = 218,668.62/x - Step 3: Cross multiply
399,944.62x = 551,938.31 × 218,668.62 - Step 4: Simplify right side
399,944.62x = 120,691,588,572.83 - Step 5: Solve for x
x = 120,691,588,572.83/399,944.62 - Step 6: Final answer
x = 301,770.75
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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.