Finding the Fourth Proportional to 258,167.39, 356,269.84 and 143,464.70
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Solution
The fourth proportional to 258,167.39, 356,269.84 and 143,464.70 is: 197,980.65
Step by Step Solution
- Step 1: Write the proportion equation
258,167.39 : 356,269.84 = 143,464.70 : x - Step 2: Convert to fraction form
258,167.39/356,269.84 = 143,464.70/x - Step 3: Cross multiply
258,167.39x = 356,269.84 × 143,464.70 - Step 4: Simplify right side
258,167.39x = 51,112,146,246.66 - Step 5: Solve for x
x = 51,112,146,246.66/258,167.39 - Step 6: Final answer
x = 197,980.65
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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.