Finding the Fourth Proportional to 654,252.90, 981,378.09 and 205,008.18
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Solution
The fourth proportional to 654,252.90, 981,378.09 and 205,008.18 is: 307,511.88
Step by Step Solution
- Step 1: Write the proportion equation
654,252.90 : 981,378.09 = 205,008.18 : x - Step 2: Convert to fraction form
654,252.90/981,378.09 = 205,008.18/x - Step 3: Cross multiply
654,252.90x = 981,378.09 × 205,008.18 - Step 4: Simplify right side
654,252.90x = 201,190,536,122.78 - Step 5: Solve for x
x = 201,190,536,122.78/654,252.90 - Step 6: Final answer
x = 307,511.88
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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.