Finding the Fourth Proportional to 387,564.26, 534,844.90 and 213,141.36
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Solution
The fourth proportional to 387,564.26, 534,844.90 and 213,141.36 is: 294,138.50
Step by Step Solution
- Step 1: Write the proportion equation
387,564.26 : 534,844.90 = 213,141.36 : x - Step 2: Convert to fraction form
387,564.26/534,844.90 = 213,141.36/x - Step 3: Cross multiply
387,564.26x = 534,844.90 × 213,141.36 - Step 4: Simplify right side
387,564.26x = 113,997,569,641.49 - Step 5: Solve for x
x = 113,997,569,641.49/387,564.26 - Step 6: Final answer
x = 294,138.50
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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.