Finding the Fourth Proportional to 286,056.72, 394,830.84 and 195,449.31
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Solution
The fourth proportional to 286,056.72, 394,830.84 and 195,449.31 is: 269,769.63
Step by Step Solution
- Step 1: Write the proportion equation
286,056.72 : 394,830.84 = 195,449.31 : x - Step 2: Convert to fraction form
286,056.72/394,830.84 = 195,449.31/x - Step 3: Cross multiply
286,056.72x = 394,830.84 × 195,449.31 - Step 4: Simplify right side
286,056.72x = 77,169,415,244.72 - Step 5: Solve for x
x = 77,169,415,244.72/286,056.72 - Step 6: Final answer
x = 269,769.63
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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.