Finding the Fourth Proportional to 258,351.84, 387,318.65 and 80,767.44
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Solution
The fourth proportional to 258,351.84, 387,318.65 and 80,767.44 is: 121,085.79
Step by Step Solution
- Step 1: Write the proportion equation
258,351.84 : 387,318.65 = 80,767.44 : x - Step 2: Convert to fraction form
258,351.84/387,318.65 = 80,767.44/x - Step 3: Cross multiply
258,351.84x = 387,318.65 × 80,767.44 - Step 4: Simplify right side
258,351.84x = 31,282,735,420.92 - Step 5: Solve for x
x = 31,282,735,420.92/258,351.84 - Step 6: Final answer
x = 121,085.79
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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.