Finding the Fourth Proportional to 319,639.41, 479,334.45 and 119,850.93
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Solution
The fourth proportional to 319,639.41, 479,334.45 and 119,850.93 is: 179,729.65
Step by Step Solution
- Step 1: Write the proportion equation
319,639.41 : 479,334.45 = 119,850.93 : x - Step 2: Convert to fraction form
319,639.41/479,334.45 = 119,850.93/x - Step 3: Cross multiply
319,639.41x = 479,334.45 × 119,850.93 - Step 4: Simplify right side
319,639.41x = 57,448,679,613.54 - Step 5: Solve for x
x = 57,448,679,613.54/319,639.41 - Step 6: Final answer
x = 179,729.65
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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.