Finding the Fourth Proportional to 328,803.78, 453,723.09 and 201,461.94
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Solution
The fourth proportional to 328,803.78, 453,723.09 and 201,461.94 is: 278,001.47
Step by Step Solution
- Step 1: Write the proportion equation
328,803.78 : 453,723.09 = 201,461.94 : x - Step 2: Convert to fraction form
328,803.78/453,723.09 = 201,461.94/x - Step 3: Cross multiply
328,803.78x = 453,723.09 × 201,461.94 - Step 4: Simplify right side
328,803.78x = 91,407,933,934.19 - Step 5: Solve for x
x = 91,407,933,934.19/328,803.78 - Step 6: Final answer
x = 278,001.47
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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.