Finding the Fourth Proportional to 253,780.47, 380,637.29 and 120,745.26
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Solution
The fourth proportional to 253,780.47, 380,637.29 and 120,745.26 is: 181,101.99
Step by Step Solution
- Step 1: Write the proportion equation
253,780.47 : 380,637.29 = 120,745.26 : x - Step 2: Convert to fraction form
253,780.47/380,637.29 = 120,745.26/x - Step 3: Cross multiply
253,780.47x = 380,637.29 × 120,745.26 - Step 4: Simplify right side
253,780.47x = 45,960,148,546.75 - Step 5: Solve for x
x = 45,960,148,546.75/253,780.47 - Step 6: Final answer
x = 181,101.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.