Finding the Fourth Proportional to 328,516.30, 492,699.11 and 91,875.70
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Solution
The fourth proportional to 328,516.30, 492,699.11 and 91,875.70 is: 137,792.47
Step by Step Solution
- Step 1: Write the proportion equation
328,516.30 : 492,699.11 = 91,875.70 : x - Step 2: Convert to fraction form
328,516.30/492,699.11 = 91,875.70/x - Step 3: Cross multiply
328,516.30x = 492,699.11 × 91,875.70 - Step 4: Simplify right side
328,516.30x = 45,267,073,157.13 - Step 5: Solve for x
x = 45,267,073,157.13/328,516.30 - Step 6: Final answer
x = 137,792.47
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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.