Finding the Fourth Proportional to 465,455.84, 698,169.84 and 128,517.12
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Solution
The fourth proportional to 465,455.84, 698,169.84 and 128,517.12 is: 192,771.84
Step by Step Solution
- Step 1: Write the proportion equation
465,455.84 : 698,169.84 = 128,517.12 : x - Step 2: Convert to fraction form
465,455.84/698,169.84 = 128,517.12/x - Step 3: Cross multiply
465,455.84x = 698,169.84 × 128,517.12 - Step 4: Simplify right side
465,455.84x = 89,726,777,107.66 - Step 5: Solve for x
x = 89,726,777,107.66/465,455.84 - Step 6: Final answer
x = 192,771.84
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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.