Finding the Fourth Proportional to 251,948.40, 347,675.67 and 156,453.06
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Solution
The fourth proportional to 251,948.40, 347,675.67 and 156,453.06 is: 215,897.07
Step by Step Solution
- Step 1: Write the proportion equation
251,948.40 : 347,675.67 = 156,453.06 : x - Step 2: Convert to fraction form
251,948.40/347,675.67 = 156,453.06/x - Step 3: Cross multiply
251,948.40x = 347,675.67 × 156,453.06 - Step 4: Simplify right side
251,948.40x = 54,394,922,459.05 - Step 5: Solve for x
x = 54,394,922,459.05/251,948.40 - Step 6: Final answer
x = 215,897.07
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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.