Finding the Fourth Proportional to 358,766.75, 538,216.25 and 148,421.09
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Solution
The fourth proportional to 358,766.75, 538,216.25 and 148,421.09 is: 222,658.99
Step by Step Solution
- Step 1: Write the proportion equation
358,766.75 : 538,216.25 = 148,421.09 : x - Step 2: Convert to fraction form
358,766.75/538,216.25 = 148,421.09/x - Step 3: Cross multiply
358,766.75x = 538,216.25 × 148,421.09 - Step 4: Simplify right side
358,766.75x = 79,882,643,084.15 - Step 5: Solve for x
x = 79,882,643,084.15/358,766.75 - Step 6: Final answer
x = 222,658.99
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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.