Finding the Fourth Proportional to 258,621.31, 356,893.97 and 145,444.06
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Solution
The fourth proportional to 258,621.31, 356,893.97 and 145,444.06 is: 200,710.87
Step by Step Solution
- Step 1: Write the proportion equation
258,621.31 : 356,893.97 = 145,444.06 : x - Step 2: Convert to fraction form
258,621.31/356,893.97 = 145,444.06/x - Step 3: Cross multiply
258,621.31x = 356,893.97 × 145,444.06 - Step 4: Simplify right side
258,621.31x = 51,908,107,986.32 - Step 5: Solve for x
x = 51,908,107,986.32/258,621.31 - Step 6: Final answer
x = 200,710.87
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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.