Finding the Fourth Proportional to 427,961.80, 590,580.05 and 236,971.09
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Solution
The fourth proportional to 427,961.80, 590,580.05 and 236,971.09 is: 327,016.09
Step by Step Solution
- Step 1: Write the proportion equation
427,961.80 : 590,580.05 = 236,971.09 : x - Step 2: Convert to fraction form
427,961.80/590,580.05 = 236,971.09/x - Step 3: Cross multiply
427,961.80x = 590,580.05 × 236,971.09 - Step 4: Simplify right side
427,961.80x = 139,950,394,412.11 - Step 5: Solve for x
x = 139,950,394,412.11/427,961.80 - Step 6: Final answer
x = 327,016.09
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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.