Finding the Fourth Proportional to 398,936.12, 550,583.04 and 229,203.08
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Solution
The fourth proportional to 398,936.12, 550,583.04 and 229,203.08 is: 316,329.66
Step by Step Solution
- Step 1: Write the proportion equation
398,936.12 : 550,583.04 = 229,203.08 : x - Step 2: Convert to fraction form
398,936.12/550,583.04 = 229,203.08/x - Step 3: Cross multiply
398,936.12x = 550,583.04 × 229,203.08 - Step 4: Simplify right side
398,936.12x = 126,195,328,563.76 - Step 5: Solve for x
x = 126,195,328,563.76/398,936.12 - Step 6: Final answer
x = 316,329.66
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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.