Finding the Fourth Proportional to 399,463.26, 551,236.94 and 227,423.12
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Solution
The fourth proportional to 399,463.26, 551,236.94 and 227,423.12 is: 313,831.17
Step by Step Solution
- Step 1: Write the proportion equation
399,463.26 : 551,236.94 = 227,423.12 : x - Step 2: Convert to fraction form
399,463.26/551,236.94 = 227,423.12/x - Step 3: Cross multiply
399,463.26x = 551,236.94 × 227,423.12 - Step 4: Simplify right side
399,463.26x = 125,364,020,860.75 - Step 5: Solve for x
x = 125,364,020,860.75/399,463.26 - Step 6: Final answer
x = 313,831.17
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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.