Finding the Fourth Proportional to 387,364.94, 534,561.60 and 212,939.21
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Solution
The fourth proportional to 387,364.94, 534,561.60 and 212,939.21 is: 293,854.99
Step by Step Solution
- Step 1: Write the proportion equation
387,364.94 : 534,561.60 = 212,939.21 : x - Step 2: Convert to fraction form
387,364.94/534,561.60 = 212,939.21/x - Step 3: Cross multiply
387,364.94x = 534,561.60 × 212,939.21 - Step 4: Simplify right side
387,364.94x = 113,829,121,062.83 - Step 5: Solve for x
x = 113,829,121,062.83/387,364.94 - Step 6: Final answer
x = 293,854.99
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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.