Finding the Fourth Proportional to 505,688.70, 758,423.70 and 221,378.70
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Solution
The fourth proportional to 505,688.70, 758,423.70 and 221,378.70 is: 332,020.18
Step by Step Solution
- Step 1: Write the proportion equation
505,688.70 : 758,423.70 = 221,378.70 : x - Step 2: Convert to fraction form
505,688.70/758,423.70 = 221,378.70/x - Step 3: Cross multiply
505,688.70x = 758,423.70 × 221,378.70 - Step 4: Simplify right side
505,688.70x = 167,898,852,755.19 - Step 5: Solve for x
x = 167,898,852,755.19/505,688.70 - Step 6: Final answer
x = 332,020.18
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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.