Finding the Fourth Proportional to 251,511.84, 347,082.64 and 138,327.84
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Solution
The fourth proportional to 251,511.84, 347,082.64 and 138,327.84 is: 190,890.38
Step by Step Solution
- Step 1: Write the proportion equation
251,511.84 : 347,082.64 = 138,327.84 : x - Step 2: Convert to fraction form
251,511.84/347,082.64 = 138,327.84/x - Step 3: Cross multiply
251,511.84x = 347,082.64 × 138,327.84 - Step 4: Simplify right side
251,511.84x = 48,011,191,892.70 - Step 5: Solve for x
x = 48,011,191,892.70/251,511.84 - Step 6: Final answer
x = 190,890.38
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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.