Finding the Fourth Proportional to 421,178.25, 581,217.36 and 230,193.03
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Solution
The fourth proportional to 421,178.25, 581,217.36 and 230,193.03 is: 317,661.67
Step by Step Solution
- Step 1: Write the proportion equation
421,178.25 : 581,217.36 = 230,193.03 : x - Step 2: Convert to fraction form
421,178.25/581,217.36 = 230,193.03/x - Step 3: Cross multiply
421,178.25x = 581,217.36 × 230,193.03 - Step 4: Simplify right side
421,178.25x = 133,792,185,187.00 - Step 5: Solve for x
x = 133,792,185,187.00/421,178.25 - Step 6: Final answer
x = 317,661.67
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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.