Finding the Fourth Proportional to 305,619.84, 421,776 and 169,669.44
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Solution
The fourth proportional to 305,619.84, 421,776 and 169,669.44 is: 234,155.28
Step by Step Solution
- Step 1: Write the proportion equation
305,619.84 : 421,776 = 169,669.44 : x - Step 2: Convert to fraction form
305,619.84/421,776 = 169,669.44/x - Step 3: Cross multiply
305,619.84x = 421,776 × 169,669.44 - Step 4: Simplify right side
305,619.84x = 71,562,497,725.44 - Step 5: Solve for x
x = 71,562,497,725.44/305,619.84 - Step 6: Final answer
x = 234,155.28
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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.