Finding the Fourth Proportional to 276,966.42, 415,519.53 and 77,286.63
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Solution
The fourth proportional to 276,966.42, 415,519.53 and 77,286.63 is: 115,949.45
Step by Step Solution
- Step 1: Write the proportion equation
276,966.42 : 415,519.53 = 77,286.63 : x - Step 2: Convert to fraction form
276,966.42/415,519.53 = 77,286.63/x - Step 3: Cross multiply
276,966.42x = 415,519.53 × 77,286.63 - Step 4: Simplify right side
276,966.42x = 32,114,104,172.88 - Step 5: Solve for x
x = 32,114,104,172.88/276,966.42 - Step 6: Final answer
x = 115,949.45
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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.