Finding the Fourth Proportional to 424,068.78, 635,189.70 and 199,092.09
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Solution
The fourth proportional to 424,068.78, 635,189.70 and 199,092.09 is: 298,209.28
Step by Step Solution
- Step 1: Write the proportion equation
424,068.78 : 635,189.70 = 199,092.09 : x - Step 2: Convert to fraction form
424,068.78/635,189.70 = 199,092.09/x - Step 3: Cross multiply
424,068.78x = 635,189.70 × 199,092.09 - Step 4: Simplify right side
424,068.78x = 126,461,244,919.47 - Step 5: Solve for x
x = 126,461,244,919.47/424,068.78 - Step 6: Final answer
x = 298,209.28
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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.