Finding the Fourth Proportional to 252,008.19, 347,771.28 and 138,830.94
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Solution
The fourth proportional to 252,008.19, 347,771.28 and 138,830.94 is: 191,586.69
Step by Step Solution
- Step 1: Write the proportion equation
252,008.19 : 347,771.28 = 138,830.94 : x - Step 2: Convert to fraction form
252,008.19/347,771.28 = 138,830.94/x - Step 3: Cross multiply
252,008.19x = 347,771.28 × 138,830.94 - Step 4: Simplify right side
252,008.19x = 48,281,414,228.02 - Step 5: Solve for x
x = 48,281,414,228.02/252,008.19 - Step 6: Final answer
x = 191,586.69
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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.