Finding the Fourth Proportional to 387,960.12, 581,940.18 and 107,470.08
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Solution
The fourth proportional to 387,960.12, 581,940.18 and 107,470.08 is: 161,205.12
Step by Step Solution
- Step 1: Write the proportion equation
387,960.12 : 581,940.18 = 107,470.08 : x - Step 2: Convert to fraction form
387,960.12/581,940.18 = 107,470.08/x - Step 3: Cross multiply
387,960.12x = 581,940.18 × 107,470.08 - Step 4: Simplify right side
387,960.12x = 62,541,157,699.81 - Step 5: Solve for x
x = 62,541,157,699.81/387,960.12 - Step 6: Final answer
x = 161,205.12
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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.