Finding the Fourth Proportional to 258,126.08, 387,149.16 and 131,859.68
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Solution
The fourth proportional to 258,126.08, 387,149.16 and 131,859.68 is: 197,769.11
Step by Step Solution
- Step 1: Write the proportion equation
258,126.08 : 387,149.16 = 131,859.68 : x - Step 2: Convert to fraction form
258,126.08/387,149.16 = 131,859.68/x - Step 3: Cross multiply
258,126.08x = 387,149.16 × 131,859.68 - Step 4: Simplify right side
258,126.08x = 51,049,364,349.87 - Step 5: Solve for x
x = 51,049,364,349.87/258,126.08 - Step 6: Final answer
x = 197,769.11
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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.