Finding the Fourth Proportional to 252,051.84, 347,821.20 and 138,867.84
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Solution
The fourth proportional to 252,051.84, 347,821.20 and 138,867.84 is: 191,631.92
Step by Step Solution
- Step 1: Write the proportion equation
252,051.84 : 347,821.20 = 138,867.84 : x - Step 2: Convert to fraction form
252,051.84/347,821.20 = 138,867.84/x - Step 3: Cross multiply
252,051.84x = 347,821.20 × 138,867.84 - Step 4: Simplify right side
252,051.84x = 48,301,178,750.21 - Step 5: Solve for x
x = 48,301,178,750.21/252,051.84 - Step 6: Final answer
x = 191,631.92
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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.