Finding the Fourth Proportional to 219,811.20, 303,340.80 and 119,208.96
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Solution
The fourth proportional to 219,811.20, 303,340.80 and 119,208.96 is: 164,509.09
Step by Step Solution
- Step 1: Write the proportion equation
219,811.20 : 303,340.80 = 119,208.96 : x - Step 2: Convert to fraction form
219,811.20/303,340.80 = 119,208.96/x - Step 3: Cross multiply
219,811.20x = 303,340.80 × 119,208.96 - Step 4: Simplify right side
219,811.20x = 36,160,941,293.57 - Step 5: Solve for x
x = 36,160,941,293.57/219,811.20 - Step 6: Final answer
x = 164,509.09
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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.