Finding the Fourth Proportional to 405,807.08, 560,193.12 and 242,521.20
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Solution
The fourth proportional to 405,807.08, 560,193.12 and 242,521.20 is: 334,786.44
Step by Step Solution
- Step 1: Write the proportion equation
405,807.08 : 560,193.12 = 242,521.20 : x - Step 2: Convert to fraction form
405,807.08/560,193.12 = 242,521.20/x - Step 3: Cross multiply
405,807.08x = 560,193.12 × 242,521.20 - Step 4: Simplify right side
405,807.08x = 135,858,707,694.14 - Step 5: Solve for x
x = 135,858,707,694.14/405,807.08 - Step 6: Final answer
x = 334,786.44
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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.