Finding the Fourth Proportional to 221,397.08, 305,626.92 and 149,993.96
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Solution
The fourth proportional to 221,397.08, 305,626.92 and 149,993.96 is: 207,058.70
Step by Step Solution
- Step 1: Write the proportion equation
221,397.08 : 305,626.92 = 149,993.96 : x - Step 2: Convert to fraction form
221,397.08/305,626.92 = 149,993.96/x - Step 3: Cross multiply
221,397.08x = 305,626.92 × 149,993.96 - Step 4: Simplify right side
221,397.08x = 45,842,192,013.40 - Step 5: Solve for x
x = 45,842,192,013.40/221,397.08 - Step 6: Final answer
x = 207,058.70
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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.