Finding the Fourth Proportional to 258,140.88, 356,235.84 and 143,419.68
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Solution
The fourth proportional to 258,140.88, 356,235.84 and 143,419.68 is: 197,919.95
Step by Step Solution
- Step 1: Write the proportion equation
258,140.88 : 356,235.84 = 143,419.68 : x - Step 2: Convert to fraction form
258,140.88/356,235.84 = 143,419.68/x - Step 3: Cross multiply
258,140.88x = 356,235.84 × 143,419.68 - Step 4: Simplify right side
258,140.88x = 51,091,230,177.33 - Step 5: Solve for x
x = 51,091,230,177.33/258,140.88 - Step 6: Final answer
x = 197,919.95
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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.