Finding the Fourth Proportional to 383,157.68, 528,757.61 and 213,391.81
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Solution
The fourth proportional to 383,157.68, 528,757.61 and 213,391.81 is: 294,480.70
Step by Step Solution
- Step 1: Write the proportion equation
383,157.68 : 528,757.61 = 213,391.81 : x - Step 2: Convert to fraction form
383,157.68/528,757.61 = 213,391.81/x - Step 3: Cross multiply
383,157.68x = 528,757.61 × 213,391.81 - Step 4: Simplify right side
383,157.68x = 112,832,541,060.32 - Step 5: Solve for x
x = 112,832,541,060.32/383,157.68 - Step 6: Final answer
x = 294,480.70
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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.