Finding the Fourth Proportional to 319,455.26, 479,366.06 and 129,880.64
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Solution
The fourth proportional to 319,455.26, 479,366.06 and 129,880.64 is: 194,895.43
Step by Step Solution
- Step 1: Write the proportion equation
319,455.26 : 479,366.06 = 129,880.64 : x - Step 2: Convert to fraction form
319,455.26/479,366.06 = 129,880.64/x - Step 3: Cross multiply
319,455.26x = 479,366.06 × 129,880.64 - Step 4: Simplify right side
319,455.26x = 62,260,370,667.08 - Step 5: Solve for x
x = 62,260,370,667.08/319,455.26 - Step 6: Final answer
x = 194,895.43
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.