Finding the Fourth Proportional to 219,319.20, 328,201.20 and 149,335.20
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Solution
The fourth proportional to 219,319.20, 328,201.20 and 149,335.20 is: 223,473.33
Step by Step Solution
- Step 1: Write the proportion equation
219,319.20 : 328,201.20 = 149,335.20 : x - Step 2: Convert to fraction form
219,319.20/328,201.20 = 149,335.20/x - Step 3: Cross multiply
219,319.20x = 328,201.20 × 149,335.20 - Step 4: Simplify right side
219,319.20x = 49,011,991,842.24 - Step 5: Solve for x
x = 49,011,991,842.24/219,319.20 - Step 6: Final answer
x = 223,473.33
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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.