Finding the Fourth Proportional to 266,642.88, 399,765.12 and 161,436.48
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Solution
The fourth proportional to 266,642.88, 399,765.12 and 161,436.48 is: 242,034.12
Step by Step Solution
- Step 1: Write the proportion equation
266,642.88 : 399,765.12 = 161,436.48 : x - Step 2: Convert to fraction form
266,642.88/399,765.12 = 161,436.48/x - Step 3: Cross multiply
266,642.88x = 399,765.12 × 161,436.48 - Step 4: Simplify right side
266,642.88x = 64,536,673,799.58 - Step 5: Solve for x
x = 64,536,673,799.58/266,642.88 - Step 6: Final answer
x = 242,034.12
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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.