Finding the Fourth Proportional to 219,328.20, 328,214.70 and 149,344.20
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Solution
The fourth proportional to 219,328.20, 328,214.70 and 149,344.20 is: 223,486.82
Step by Step Solution
- Step 1: Write the proportion equation
219,328.20 : 328,214.70 = 149,344.20 : x - Step 2: Convert to fraction form
219,328.20/328,214.70 = 149,344.20/x - Step 3: Cross multiply
219,328.20x = 328,214.70 × 149,344.20 - Step 4: Simplify right side
219,328.20x = 49,016,961,799.74 - Step 5: Solve for x
x = 49,016,961,799.74/219,328.20 - Step 6: Final answer
x = 223,486.82
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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.