Finding the Fourth Proportional to 319,901.12, 479,704.80 and 186,822.08
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Solution
The fourth proportional to 319,901.12, 479,704.80 and 186,822.08 is: 280,147.34
Step by Step Solution
- Step 1: Write the proportion equation
319,901.12 : 479,704.80 = 186,822.08 : x - Step 2: Convert to fraction form
319,901.12/479,704.80 = 186,822.08/x - Step 3: Cross multiply
319,901.12x = 479,704.80 × 186,822.08 - Step 4: Simplify right side
319,901.12x = 89,619,448,521.98 - Step 5: Solve for x
x = 89,619,448,521.98/319,901.12 - Step 6: Final answer
x = 280,147.34
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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.