Finding the Fourth Proportional to 258,522.43, 356,782.49 and 143,822.68
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Solution
The fourth proportional to 258,522.43, 356,782.49 and 143,822.68 is: 198,487.28
Step by Step Solution
- Step 1: Write the proportion equation
258,522.43 : 356,782.49 = 143,822.68 : x - Step 2: Convert to fraction form
258,522.43/356,782.49 = 143,822.68/x - Step 3: Cross multiply
258,522.43x = 356,782.49 × 143,822.68 - Step 4: Simplify right side
258,522.43x = 51,313,413,888.87 - Step 5: Solve for x
x = 51,313,413,888.87/258,522.43 - Step 6: Final answer
x = 198,487.28
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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.