Finding the Fourth Proportional to 258,134.62, 387,201.08 and 68,614.06
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Solution
The fourth proportional to 258,134.62, 387,201.08 and 68,614.06 is: 102,920.86
Step by Step Solution
- Step 1: Write the proportion equation
258,134.62 : 387,201.08 = 68,614.06 : x - Step 2: Convert to fraction form
258,134.62/387,201.08 = 68,614.06/x - Step 3: Cross multiply
258,134.62x = 387,201.08 × 68,614.06 - Step 4: Simplify right side
258,134.62x = 26,567,438,135.18 - Step 5: Solve for x
x = 26,567,438,135.18/258,134.62 - Step 6: Final answer
x = 102,920.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.