Finding the Fourth Proportional to 221,321.36, 305,402.97 and 125,809.40
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Solution
The fourth proportional to 221,321.36, 305,402.97 and 125,809.40 is: 173,605.31
Step by Step Solution
- Step 1: Write the proportion equation
221,321.36 : 305,402.97 = 125,809.40 : x - Step 2: Convert to fraction form
221,321.36/305,402.97 = 125,809.40/x - Step 3: Cross multiply
221,321.36x = 305,402.97 × 125,809.40 - Step 4: Simplify right side
221,321.36x = 38,422,564,413.92 - Step 5: Solve for x
x = 38,422,564,413.92/221,321.36 - Step 6: Final answer
x = 173,605.31
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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.