Finding the Fourth Proportional to 242,578.20, 363,867.30 and 207,148.80
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Solution
The fourth proportional to 242,578.20, 363,867.30 and 207,148.80 is: 310,723.20
Step by Step Solution
- Step 1: Write the proportion equation
242,578.20 : 363,867.30 = 207,148.80 : x - Step 2: Convert to fraction form
242,578.20/363,867.30 = 207,148.80/x - Step 3: Cross multiply
242,578.20x = 363,867.30 × 207,148.80 - Step 4: Simplify right side
242,578.20x = 75,374,674,554.24 - Step 5: Solve for x
x = 75,374,674,554.24/242,578.20 - Step 6: Final answer
x = 310,723.20
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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.