Finding the Fourth Proportional to 171,728.91, 257,616.81 and 59,378.96
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Solution
The fourth proportional to 171,728.91, 257,616.81 and 59,378.96 is: 89,076.55
Step by Step Solution
- Step 1: Write the proportion equation
171,728.91 : 257,616.81 = 59,378.96 : x - Step 2: Convert to fraction form
171,728.91/257,616.81 = 59,378.96/x - Step 3: Cross multiply
171,728.91x = 257,616.81 × 59,378.96 - Step 4: Simplify right side
171,728.91x = 15,297,019,272.06 - Step 5: Solve for x
x = 15,297,019,272.06/171,728.91 - Step 6: Final answer
x = 89,076.55
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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.