Finding the Fourth Proportional to 383,188.96, 528,816.99 and 213,423.07
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Solution
The fourth proportional to 383,188.96, 528,816.99 and 213,423.07 is: 294,532.87
Step by Step Solution
- Step 1: Write the proportion equation
383,188.96 : 528,816.99 = 213,423.07 : x - Step 2: Convert to fraction form
383,188.96/528,816.99 = 213,423.07/x - Step 3: Cross multiply
383,188.96x = 528,816.99 × 213,423.07 - Step 4: Simplify right side
383,188.96x = 112,861,745,473.96 - Step 5: Solve for x
x = 112,861,745,473.96/383,188.96 - Step 6: Final answer
x = 294,532.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.