Finding the Fourth Proportional to 248,658.12, 373,013.64 and 90,920.88
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Solution
The fourth proportional to 248,658.12, 373,013.64 and 90,920.88 is: 136,390.99
Step by Step Solution
- Step 1: Write the proportion equation
248,658.12 : 373,013.64 = 90,920.88 : x - Step 2: Convert to fraction form
248,658.12/373,013.64 = 90,920.88/x - Step 3: Cross multiply
248,658.12x = 373,013.64 × 90,920.88 - Step 4: Simplify right side
248,658.12x = 33,914,728,400.80 - Step 5: Solve for x
x = 33,914,728,400.80/248,658.12 - Step 6: Final answer
x = 136,390.99
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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.