Finding the Fourth Proportional to 331,139.18, 457,010.97 and 185,968.82
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Solution
The fourth proportional to 331,139.18, 457,010.97 and 185,968.82 is: 256,658.82
Step by Step Solution
- Step 1: Write the proportion equation
331,139.18 : 457,010.97 = 185,968.82 : x - Step 2: Convert to fraction form
331,139.18/457,010.97 = 185,968.82/x - Step 3: Cross multiply
331,139.18x = 457,010.97 × 185,968.82 - Step 4: Simplify right side
331,139.18x = 84,989,790,817.96 - Step 5: Solve for x
x = 84,989,790,817.96/331,139.18 - Step 6: Final answer
x = 256,658.82
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.