Finding the Fourth Proportional to 306,157.79, 422,703.90 and 273,792.02
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Solution
The fourth proportional to 306,157.79, 422,703.90 and 273,792.02 is: 378,017.33
Step by Step Solution
- Step 1: Write the proportion equation
306,157.79 : 422,703.90 = 273,792.02 : x - Step 2: Convert to fraction form
306,157.79/422,703.90 = 273,792.02/x - Step 3: Cross multiply
306,157.79x = 422,703.90 × 273,792.02 - Step 4: Simplify right side
306,157.79x = 115,732,952,529.36 - Step 5: Solve for x
x = 115,732,952,529.36/306,157.79 - Step 6: Final answer
x = 378,017.33
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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.