Finding the Fourth Proportional to 274,470.79, 378,769.63 and 153,612.07
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Solution
The fourth proportional to 274,470.79, 378,769.63 and 153,612.07 is: 211,984.62
Step by Step Solution
- Step 1: Write the proportion equation
274,470.79 : 378,769.63 = 153,612.07 : x - Step 2: Convert to fraction form
274,470.79/378,769.63 = 153,612.07/x - Step 3: Cross multiply
274,470.79x = 378,769.63 × 153,612.07 - Step 4: Simplify right side
274,470.79x = 58,183,585,586.48 - Step 5: Solve for x
x = 58,183,585,586.48/274,470.79 - Step 6: Final answer
x = 211,984.62
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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.