Finding the Fourth Proportional to 355,436.64, 490,515.75 and 194,302.62
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Solution
The fourth proportional to 355,436.64, 490,515.75 and 194,302.62 is: 268,144.82
Step by Step Solution
- Step 1: Write the proportion equation
355,436.64 : 490,515.75 = 194,302.62 : x - Step 2: Convert to fraction form
355,436.64/490,515.75 = 194,302.62/x - Step 3: Cross multiply
355,436.64x = 490,515.75 × 194,302.62 - Step 4: Simplify right side
355,436.64x = 95,308,495,376.27 - Step 5: Solve for x
x = 95,308,495,376.27/355,436.64 - Step 6: Final answer
x = 268,144.82
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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.