Finding the Fourth Proportional to 388,660.70, 536,339.12 and 237,757.70
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Solution
The fourth proportional to 388,660.70, 536,339.12 and 237,757.70 is: 328,097.89
Step by Step Solution
- Step 1: Write the proportion equation
388,660.70 : 536,339.12 = 237,757.70 : x - Step 2: Convert to fraction form
388,660.70/536,339.12 = 237,757.70/x - Step 3: Cross multiply
388,660.70x = 536,339.12 × 237,757.70 - Step 4: Simplify right side
388,660.70x = 127,518,755,591.22 - Step 5: Solve for x
x = 127,518,755,591.22/388,660.70 - Step 6: Final answer
x = 328,097.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.