Finding the Fourth Proportional to 228,344.21, 342,724.07 and 121,818.47
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Solution
The fourth proportional to 228,344.21, 342,724.07 and 121,818.47 is: 182,838.55
Step by Step Solution
- Step 1: Write the proportion equation
228,344.21 : 342,724.07 = 121,818.47 : x - Step 2: Convert to fraction form
228,344.21/342,724.07 = 121,818.47/x - Step 3: Cross multiply
228,344.21x = 342,724.07 × 121,818.47 - Step 4: Simplify right side
228,344.21x = 41,750,123,000.93 - Step 5: Solve for x
x = 41,750,123,000.93/228,344.21 - Step 6: Final answer
x = 182,838.55
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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.