Finding the Fourth Proportional to 515,376.12, 773,137.08 and 199,864.92
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Solution
The fourth proportional to 515,376.12, 773,137.08 and 199,864.92 is: 299,825.65
Step by Step Solution
- Step 1: Write the proportion equation
515,376.12 : 773,137.08 = 199,864.92 : x - Step 2: Convert to fraction form
515,376.12/773,137.08 = 199,864.92/x - Step 3: Cross multiply
515,376.12x = 773,137.08 × 199,864.92 - Step 4: Simplify right side
515,376.12x = 154,522,980,643.23 - Step 5: Solve for x
x = 154,522,980,643.23/515,376.12 - Step 6: Final answer
x = 299,825.65
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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.