Finding the Fourth Proportional to 309,305.79, 463,958.94 and 84,668.09
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Solution
The fourth proportional to 309,305.79, 463,958.94 and 84,668.09 is: 127,002.20
Step by Step Solution
- Step 1: Write the proportion equation
309,305.79 : 463,958.94 = 84,668.09 : x - Step 2: Convert to fraction form
309,305.79/463,958.94 = 84,668.09/x - Step 3: Cross multiply
309,305.79x = 463,958.94 × 84,668.09 - Step 4: Simplify right side
309,305.79x = 39,282,517,288.22 - Step 5: Solve for x
x = 39,282,517,288.22/309,305.79 - Step 6: Final answer
x = 127,002.20
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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.