Finding the Fourth Proportional to 248,990.40, 373,260.64 and 91,108.80
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Solution
The fourth proportional to 248,990.40, 373,260.64 and 91,108.80 is: 136,580.88
Step by Step Solution
- Step 1: Write the proportion equation
248,990.40 : 373,260.64 = 91,108.80 : x - Step 2: Convert to fraction form
248,990.40/373,260.64 = 91,108.80/x - Step 3: Cross multiply
248,990.40x = 373,260.64 × 91,108.80 - Step 4: Simplify right side
248,990.40x = 34,007,328,997.63 - Step 5: Solve for x
x = 34,007,328,997.63/248,990.40 - Step 6: Final answer
x = 136,580.88
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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.