Finding the Fourth Proportional to 219,639.60, 303,121.44 and 124,163.28
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Solution
The fourth proportional to 219,639.60, 303,121.44 and 124,163.28 is: 171,355.95
Step by Step Solution
- Step 1: Write the proportion equation
219,639.60 : 303,121.44 = 124,163.28 : x - Step 2: Convert to fraction form
219,639.60/303,121.44 = 124,163.28/x - Step 3: Cross multiply
219,639.60x = 303,121.44 × 124,163.28 - Step 4: Simplify right side
219,639.60x = 37,636,552,228.72 - Step 5: Solve for x
x = 37,636,552,228.72/219,639.60 - Step 6: Final answer
x = 171,355.95
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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.