Finding the Fourth Proportional to 248,438.84, 372,605.92 and 79,974.20
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Solution
The fourth proportional to 248,438.84, 372,605.92 and 79,974.20 is: 119,944.45
Step by Step Solution
- Step 1: Write the proportion equation
248,438.84 : 372,605.92 = 79,974.20 : x - Step 2: Convert to fraction form
248,438.84/372,605.92 = 79,974.20/x - Step 3: Cross multiply
248,438.84x = 372,605.92 × 79,974.20 - Step 4: Simplify right side
248,438.84x = 29,798,860,367.26 - Step 5: Solve for x
x = 29,798,860,367.26/248,438.84 - Step 6: Final answer
x = 119,944.45
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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.