Finding the Fourth Proportional to 276,965.91, 415,518.77 and 77,286.13
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Solution
The fourth proportional to 276,965.91, 415,518.77 and 77,286.13 is: 115,948.70
Step by Step Solution
- Step 1: Write the proportion equation
276,965.91 : 415,518.77 = 77,286.13 : x - Step 2: Convert to fraction form
276,965.91/415,518.77 = 77,286.13/x - Step 3: Cross multiply
276,965.91x = 415,518.77 × 77,286.13 - Step 4: Simplify right side
276,965.91x = 32,113,837,675.66 - Step 5: Solve for x
x = 32,113,837,675.66/276,965.91 - Step 6: Final answer
x = 115,948.70
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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.