Finding the Fourth Proportional to 279,193.18, 385,284.84 and 151,869.28
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Solution
The fourth proportional to 279,193.18, 385,284.84 and 151,869.28 is: 209,578.66
Step by Step Solution
- Step 1: Write the proportion equation
279,193.18 : 385,284.84 = 151,869.28 : x - Step 2: Convert to fraction form
279,193.18/385,284.84 = 151,869.28/x - Step 3: Cross multiply
279,193.18x = 385,284.84 × 151,869.28 - Step 4: Simplify right side
279,193.18x = 58,512,931,245.72 - Step 5: Solve for x
x = 58,512,931,245.72/279,193.18 - Step 6: Final answer
x = 209,578.66
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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.