Finding the Fourth Proportional to 373,918.36, 516,044.28 and 221,006.92
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Solution
The fourth proportional to 373,918.36, 516,044.28 and 221,006.92 is: 305,011.39
Step by Step Solution
- Step 1: Write the proportion equation
373,918.36 : 516,044.28 = 221,006.92 : x - Step 2: Convert to fraction form
373,918.36/516,044.28 = 221,006.92/x - Step 3: Cross multiply
373,918.36x = 516,044.28 × 221,006.92 - Step 4: Simplify right side
373,918.36x = 114,049,356,906.42 - Step 5: Solve for x
x = 114,049,356,906.42/373,918.36 - Step 6: Final answer
x = 305,011.39
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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.