Finding the Fourth Proportional to 328,924.18, 453,917.28 and 178,021.18
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Solution
The fourth proportional to 328,924.18, 453,917.28 and 178,021.18 is: 245,670.26
Step by Step Solution
- Step 1: Write the proportion equation
328,924.18 : 453,917.28 = 178,021.18 : x - Step 2: Convert to fraction form
328,924.18/453,917.28 = 178,021.18/x - Step 3: Cross multiply
328,924.18x = 453,917.28 × 178,021.18 - Step 4: Simplify right side
328,924.18x = 80,806,889,807.99 - Step 5: Solve for x
x = 80,806,889,807.99/328,924.18 - Step 6: Final answer
x = 245,670.26
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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.