Finding the Fourth Proportional to 210,351.93, 315,456.35 and 68,158.65
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Solution
The fourth proportional to 210,351.93, 315,456.35 and 68,158.65 is: 102,214.79
Step by Step Solution
- Step 1: Write the proportion equation
210,351.93 : 315,456.35 = 68,158.65 : x - Step 2: Convert to fraction form
210,351.93/315,456.35 = 68,158.65/x - Step 3: Cross multiply
210,351.93x = 315,456.35 × 68,158.65 - Step 4: Simplify right side
210,351.93x = 21,501,078,949.93 - Step 5: Solve for x
x = 21,501,078,949.93/210,351.93 - Step 6: Final answer
x = 102,214.79
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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.