Finding the Fourth Proportional to 404,996.49, 558,896.99 and 221,237.60
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Solution
The fourth proportional to 404,996.49, 558,896.99 and 221,237.60 is: 305,308.88
Step by Step Solution
- Step 1: Write the proportion equation
404,996.49 : 558,896.99 = 221,237.60 : x - Step 2: Convert to fraction form
404,996.49/558,896.99 = 221,237.60/x - Step 3: Cross multiply
404,996.49x = 558,896.99 × 221,237.60 - Step 4: Simplify right side
404,996.49x = 123,649,024,814.15 - Step 5: Solve for x
x = 123,649,024,814.15/404,996.49 - Step 6: Final answer
x = 305,308.88
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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.