Finding the Fourth Proportional to 210,536.42, 315,805.99 and 84,187.30
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Solution
The fourth proportional to 210,536.42, 315,805.99 and 84,187.30 is: 126,281.50
Step by Step Solution
- Step 1: Write the proportion equation
210,536.42 : 315,805.99 = 84,187.30 : x - Step 2: Convert to fraction form
210,536.42/315,805.99 = 84,187.30/x - Step 3: Cross multiply
210,536.42x = 315,805.99 × 84,187.30 - Step 4: Simplify right side
210,536.42x = 26,586,853,371.93 - Step 5: Solve for x
x = 26,586,853,371.93/210,536.42 - Step 6: Final answer
x = 126,281.50
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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.