Finding the Fourth Proportional to 370,481.98, 511,348.98 and 209,430.49
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Solution
The fourth proportional to 370,481.98, 511,348.98 and 209,430.49 is: 289,061.47
Step by Step Solution
- Step 1: Write the proportion equation
370,481.98 : 511,348.98 = 209,430.49 : x - Step 2: Convert to fraction form
370,481.98/511,348.98 = 209,430.49/x - Step 3: Cross multiply
370,481.98x = 511,348.98 × 209,430.49 - Step 4: Simplify right side
370,481.98x = 107,092,067,442.40 - Step 5: Solve for x
x = 107,092,067,442.40/370,481.98 - Step 6: Final answer
x = 289,061.47
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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.