Finding the Fourth Proportional to 308,048.70, 461,963.70 and 213,278.70
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Solution
The fourth proportional to 308,048.70, 461,963.70 and 213,278.70 is: 319,842.34
Step by Step Solution
- Step 1: Write the proportion equation
308,048.70 : 461,963.70 = 213,278.70 : x - Step 2: Convert to fraction form
308,048.70/461,963.70 = 213,278.70/x - Step 3: Cross multiply
308,048.70x = 461,963.70 × 213,278.70 - Step 4: Simplify right side
308,048.70x = 98,527,017,383.19 - Step 5: Solve for x
x = 98,527,017,383.19/308,048.70 - Step 6: Final answer
x = 319,842.34
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1.5x scale
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.