Finding the Fourth Proportional to 242,585.20, 363,877.80 and 207,155.80
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Solution
The fourth proportional to 242,585.20, 363,877.80 and 207,155.80 is: 310,733.70
Step by Step Solution
- Step 1: Write the proportion equation
242,585.20 : 363,877.80 = 207,155.80 : x - Step 2: Convert to fraction form
242,585.20/363,877.80 = 207,155.80/x - Step 3: Cross multiply
242,585.20x = 363,877.80 × 207,155.80 - Step 4: Simplify right side
242,585.20x = 75,379,396,761.24 - Step 5: Solve for x
x = 75,379,396,761.24/242,585.20 - Step 6: Final answer
x = 310,733.70
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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.