Finding the Fourth Proportional to 279,356.75, 385,445.08 and 164,639.96
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Solution
The fourth proportional to 279,356.75, 385,445.08 and 164,639.96 is: 227,163.52
Step by Step Solution
- Step 1: Write the proportion equation
279,356.75 : 385,445.08 = 164,639.96 : x - Step 2: Convert to fraction form
279,356.75/385,445.08 = 164,639.96/x - Step 3: Cross multiply
279,356.75x = 385,445.08 × 164,639.96 - Step 4: Simplify right side
279,356.75x = 63,459,662,553.40 - Step 5: Solve for x
x = 63,459,662,553.40/279,356.75 - Step 6: Final answer
x = 227,163.52
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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.