Finding the Fourth Proportional to 193,380.21, 266,859.54 and 107,338.95
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Solution
The fourth proportional to 193,380.21, 266,859.54 and 107,338.95 is: 148,124.89
Step by Step Solution
- Step 1: Write the proportion equation
193,380.21 : 266,859.54 = 107,338.95 : x - Step 2: Convert to fraction form
193,380.21/266,859.54 = 107,338.95/x - Step 3: Cross multiply
193,380.21x = 266,859.54 × 107,338.95 - Step 4: Simplify right side
193,380.21x = 28,644,422,821.08 - Step 5: Solve for x
x = 28,644,422,821.08/193,380.21 - Step 6: Final answer
x = 148,124.89
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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.