Finding the Fourth Proportional to 316,949.96, 437,439.12 and 202,278.08
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Solution
The fourth proportional to 316,949.96, 437,439.12 and 202,278.08 is: 279,174.50
Step by Step Solution
- Step 1: Write the proportion equation
316,949.96 : 437,439.12 = 202,278.08 : x - Step 2: Convert to fraction form
316,949.96/437,439.12 = 202,278.08/x - Step 3: Cross multiply
316,949.96x = 437,439.12 × 202,278.08 - Step 4: Simplify right side
316,949.96x = 88,484,345,310.49 - Step 5: Solve for x
x = 88,484,345,310.49/316,949.96 - Step 6: Final answer
x = 279,174.50
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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.