Finding the Fourth Proportional to 387,378.26, 581,242.67 and 197,740.70
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Solution
The fourth proportional to 387,378.26, 581,242.67 and 197,740.70 is: 296,700.52
Step by Step Solution
- Step 1: Write the proportion equation
387,378.26 : 581,242.67 = 197,740.70 : x - Step 2: Convert to fraction form
387,378.26/581,242.67 = 197,740.70/x - Step 3: Cross multiply
387,378.26x = 581,242.67 × 197,740.70 - Step 4: Simplify right side
387,378.26x = 114,935,332,435.67 - Step 5: Solve for x
x = 114,935,332,435.67/387,378.26 - Step 6: Final answer
x = 296,700.52
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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.