Finding the Fourth Proportional to 276,908.25, 415,402.47 and 87,304.53
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Solution
The fourth proportional to 276,908.25, 415,402.47 and 87,304.53 is: 130,969.44
Step by Step Solution
- Step 1: Write the proportion equation
276,908.25 : 415,402.47 = 87,304.53 : x - Step 2: Convert to fraction form
276,908.25/415,402.47 = 87,304.53/x - Step 3: Cross multiply
276,908.25x = 415,402.47 × 87,304.53 - Step 4: Simplify right side
276,908.25x = 36,266,517,404.19 - Step 5: Solve for x
x = 36,266,517,404.19/276,908.25 - Step 6: Final answer
x = 130,969.44
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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.