Finding the Fourth Proportional to 303,310.10, 454,921.95 and 103,639.70
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Solution
The fourth proportional to 303,310.10, 454,921.95 and 103,639.70 is: 155,444.79
Step by Step Solution
- Step 1: Write the proportion equation
303,310.10 : 454,921.95 = 103,639.70 : x - Step 2: Convert to fraction form
303,310.10/454,921.95 = 103,639.70/x - Step 3: Cross multiply
303,310.10x = 454,921.95 × 103,639.70 - Step 4: Simplify right side
303,310.10x = 47,147,974,421.42 - Step 5: Solve for x
x = 47,147,974,421.42/303,310.10 - Step 6: Final answer
x = 155,444.79
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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.