Finding the Fourth Proportional to 276,745.97, 415,129.88 and 77,083.80
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Solution
The fourth proportional to 276,745.97, 415,129.88 and 77,083.80 is: 115,628.75
Step by Step Solution
- Step 1: Write the proportion equation
276,745.97 : 415,129.88 = 77,083.80 : x - Step 2: Convert to fraction form
276,745.97/415,129.88 = 77,083.80/x - Step 3: Cross multiply
276,745.97x = 415,129.88 × 77,083.80 - Step 4: Simplify right side
276,745.97x = 31,999,788,643.94 - Step 5: Solve for x
x = 31,999,788,643.94/276,745.97 - Step 6: Final answer
x = 115,628.75
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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.