Finding the Fourth Proportional to 305,792.10, 458,761.05 and 147,890.70
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Solution
The fourth proportional to 305,792.10, 458,761.05 and 147,890.70 is: 221,871.31
Step by Step Solution
- Step 1: Write the proportion equation
305,792.10 : 458,761.05 = 147,890.70 : x - Step 2: Convert to fraction form
305,792.10/458,761.05 = 147,890.70/x - Step 3: Cross multiply
305,792.10x = 458,761.05 × 147,890.70 - Step 4: Simplify right side
305,792.10x = 67,846,492,817.24 - Step 5: Solve for x
x = 67,846,492,817.24/305,792.10 - Step 6: Final answer
x = 221,871.31
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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.