Finding the Fourth Proportional to 305,786.10, 421,970.67 and 169,828.74
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Solution
The fourth proportional to 305,786.10, 421,970.67 and 169,828.74 is: 234,355.80
Step by Step Solution
- Step 1: Write the proportion equation
305,786.10 : 421,970.67 = 169,828.74 : x - Step 2: Convert to fraction form
305,786.10/421,970.67 = 169,828.74/x - Step 3: Cross multiply
305,786.10x = 421,970.67 × 169,828.74 - Step 4: Simplify right side
305,786.10x = 71,662,747,203.06 - Step 5: Solve for x
x = 71,662,747,203.06/305,786.10 - Step 6: Final answer
x = 234,355.80
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.