Finding the Fourth Proportional to 279,851.29, 385,889.87 and 189,049.68
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Solution
The fourth proportional to 279,851.29, 385,889.87 and 189,049.68 is: 260,682.58
Step by Step Solution
- Step 1: Write the proportion equation
279,851.29 : 385,889.87 = 189,049.68 : x - Step 2: Convert to fraction form
279,851.29/385,889.87 = 189,049.68/x - Step 3: Cross multiply
279,851.29x = 385,889.87 × 189,049.68 - Step 4: Simplify right side
279,851.29x = 72,952,356,911.37 - Step 5: Solve for x
x = 72,952,356,911.37/279,851.29 - Step 6: Final answer
x = 260,682.58
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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.