Finding the Fourth Proportional to 328,209.84, 492,342.30 and 91,555.38
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Solution
The fourth proportional to 328,209.84, 492,342.30 and 91,555.38 is: 137,340.75
Step by Step Solution
- Step 1: Write the proportion equation
328,209.84 : 492,342.30 = 91,555.38 : x - Step 2: Convert to fraction form
328,209.84/492,342.30 = 91,555.38/x - Step 3: Cross multiply
328,209.84x = 492,342.30 × 91,555.38 - Step 4: Simplify right side
328,209.84x = 45,076,586,366.57 - Step 5: Solve for x
x = 45,076,586,366.57/328,209.84 - Step 6: Final answer
x = 137,340.75
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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.