Finding the Fourth Proportional to 311,686.71, 430,127.73 and 177,550.71
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Solution
The fourth proportional to 311,686.71, 430,127.73 and 177,550.71 is: 245,020.02
Step by Step Solution
- Step 1: Write the proportion equation
311,686.71 : 430,127.73 = 177,550.71 : x - Step 2: Convert to fraction form
311,686.71/430,127.73 = 177,550.71/x - Step 3: Cross multiply
311,686.71x = 430,127.73 × 177,550.71 - Step 4: Simplify right side
311,686.71x = 76,369,483,852.19 - Step 5: Solve for x
x = 76,369,483,852.19/311,686.71 - Step 6: Final answer
x = 245,020.02
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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.