Finding the Fourth Proportional to 328,861.62, 453,521.04 and 218,284.70
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Solution
The fourth proportional to 328,861.62, 453,521.04 and 218,284.70 is: 301,028.45
Step by Step Solution
- Step 1: Write the proportion equation
328,861.62 : 453,521.04 = 218,284.70 : x - Step 2: Convert to fraction form
328,861.62/453,521.04 = 218,284.70/x - Step 3: Cross multiply
328,861.62x = 453,521.04 × 218,284.70 - Step 4: Simplify right side
328,861.62x = 98,996,702,656.41 - Step 5: Solve for x
x = 98,996,702,656.41/328,861.62 - Step 6: Final answer
x = 301,028.45
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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.