Finding the Fourth Proportional to 319,806.42, 479,184.74 and 109,329.54
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Solution
The fourth proportional to 319,806.42, 479,184.74 and 109,329.54 is: 163,814.87
Step by Step Solution
- Step 1: Write the proportion equation
319,806.42 : 479,184.74 = 109,329.54 : x - Step 2: Convert to fraction form
319,806.42/479,184.74 = 109,329.54/x - Step 3: Cross multiply
319,806.42x = 479,184.74 × 109,329.54 - Step 4: Simplify right side
319,806.42x = 52,389,047,199.22 - Step 5: Solve for x
x = 52,389,047,199.22/319,806.42 - Step 6: Final answer
x = 163,814.87
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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.