Finding the Fourth Proportional to 328,537.49, 492,617.61 and 128,623.82
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Solution
The fourth proportional to 328,537.49, 492,617.61 and 128,623.82 is: 192,861.88
Step by Step Solution
- Step 1: Write the proportion equation
328,537.49 : 492,617.61 = 128,623.82 : x - Step 2: Convert to fraction form
328,537.49/492,617.61 = 128,623.82/x - Step 3: Cross multiply
328,537.49x = 492,617.61 × 128,623.82 - Step 4: Simplify right side
328,537.49x = 63,362,360,029.01 - Step 5: Solve for x
x = 63,362,360,029.01/328,537.49 - Step 6: Final answer
x = 192,861.88
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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.