Finding the Fourth Proportional to 279,631.96, 385,556.70 and 228,455.08
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Solution
The fourth proportional to 279,631.96, 385,556.70 and 228,455.08 is: 314,993.99
Step by Step Solution
- Step 1: Write the proportion equation
279,631.96 : 385,556.70 = 228,455.08 : x - Step 2: Convert to fraction form
279,631.96/385,556.70 = 228,455.08/x - Step 3: Cross multiply
279,631.96x = 385,556.70 × 228,455.08 - Step 4: Simplify right side
279,631.96x = 88,082,386,743.04 - Step 5: Solve for x
x = 88,082,386,743.04/279,631.96 - Step 6: Final answer
x = 314,993.99
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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.