Finding the Fourth Proportional to 198,590.23, 274,117.21 and 126,970.54
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Solution
The fourth proportional to 198,590.23, 274,117.21 and 126,970.54 is: 175,259.43
Step by Step Solution
- Step 1: Write the proportion equation
198,590.23 : 274,117.21 = 126,970.54 : x - Step 2: Convert to fraction form
198,590.23/274,117.21 = 126,970.54/x - Step 3: Cross multiply
198,590.23x = 274,117.21 × 126,970.54 - Step 4: Simplify right side
198,590.23x = 34,804,809,888.48 - Step 5: Solve for x
x = 34,804,809,888.48/198,590.23 - Step 6: Final answer
x = 175,259.43
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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.