Finding the Fourth Proportional to 387,107.92, 534,201 and 217,342
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Solution
The fourth proportional to 387,107.92, 534,201 and 217,342 is: 299,927.51
Step by Step Solution
- Step 1: Write the proportion equation
387,107.92 : 534,201 = 217,342 : x - Step 2: Convert to fraction form
387,107.92/534,201 = 217,342/x - Step 3: Cross multiply
387,107.92x = 534,201 × 217,342 - Step 4: Simplify right side
387,107.92x = 116,104,313,742 - Step 5: Solve for x
x = 116,104,313,742/387,107.92 - Step 6: Final answer
x = 299,927.51
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.