Finding the Fourth Proportional to 403,838.78, 557,311.51 and 220,092.68
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Solution
The fourth proportional to 403,838.78, 557,311.51 and 220,092.68 is: 303,735.52
Step by Step Solution
- Step 1: Write the proportion equation
403,838.78 : 557,311.51 = 220,092.68 : x - Step 2: Convert to fraction form
403,838.78/557,311.51 = 220,092.68/x - Step 3: Cross multiply
403,838.78x = 557,311.51 × 220,092.68 - Step 4: Simplify right side
403,838.78x = 122,660,181,126.24 - Step 5: Solve for x
x = 122,660,181,126.24/403,838.78 - Step 6: Final answer
x = 303,735.52
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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.