Finding the Fourth Proportional to 316,375.80, 474,489.18 and 91,676.94
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Solution
The fourth proportional to 316,375.80, 474,489.18 and 91,676.94 is: 137,493.82
Step by Step Solution
- Step 1: Write the proportion equation
316,375.80 : 474,489.18 = 91,676.94 : x - Step 2: Convert to fraction form
316,375.80/474,489.18 = 91,676.94/x - Step 3: Cross multiply
316,375.80x = 474,489.18 × 91,676.94 - Step 4: Simplify right side
316,375.80x = 43,499,716,085.51 - Step 5: Solve for x
x = 43,499,716,085.51/316,375.80 - Step 6: Final answer
x = 137,493.82
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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.