Finding the Fourth Proportional to 355,530.87, 490,639.68 and 194,395.95
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Solution
The fourth proportional to 355,530.87, 490,639.68 and 194,395.95 is: 268,270.28
Step by Step Solution
- Step 1: Write the proportion equation
355,530.87 : 490,639.68 = 194,395.95 : x - Step 2: Convert to fraction form
355,530.87/490,639.68 = 194,395.95/x - Step 3: Cross multiply
355,530.87x = 490,639.68 × 194,395.95 - Step 4: Simplify right side
355,530.87x = 95,378,366,701.30 - Step 5: Solve for x
x = 95,378,366,701.30/355,530.87 - Step 6: Final answer
x = 268,270.28
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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.