Finding the Fourth Proportional to 384,893.91, 531,132.14 and 212,801.92
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Solution
The fourth proportional to 384,893.91, 531,132.14 and 212,801.92 is: 293,654.78
Step by Step Solution
- Step 1: Write the proportion equation
384,893.91 : 531,132.14 = 212,801.92 : x - Step 2: Convert to fraction form
384,893.91/531,132.14 = 212,801.92/x - Step 3: Cross multiply
384,893.91x = 531,132.14 × 212,801.92 - Step 4: Simplify right side
384,893.91x = 113,025,938,369.88 - Step 5: Solve for x
x = 113,025,938,369.88/384,893.91 - Step 6: Final answer
x = 293,654.78
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1.5x scale
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.