Finding the Fourth Proportional to 384,387.98, 530,405.97 and 214,629.26
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Solution
The fourth proportional to 384,387.98, 530,405.97 and 214,629.26 is: 296,160.77
Step by Step Solution
- Step 1: Write the proportion equation
384,387.98 : 530,405.97 = 214,629.26 : x - Step 2: Convert to fraction form
384,387.98/530,405.97 = 214,629.26/x - Step 3: Cross multiply
384,387.98x = 530,405.97 × 214,629.26 - Step 4: Simplify right side
384,387.98x = 113,840,640,840.68 - Step 5: Solve for x
x = 113,840,640,840.68/384,387.98 - Step 6: Final answer
x = 296,160.77
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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.