Finding the Fourth Proportional to 398,934.12, 550,580.28 and 229,201.08
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Solution
The fourth proportional to 398,934.12, 550,580.28 and 229,201.08 is: 316,326.90
Step by Step Solution
- Step 1: Write the proportion equation
398,934.12 : 550,580.28 = 229,201.08 : x - Step 2: Convert to fraction form
398,934.12/550,580.28 = 229,201.08/x - Step 3: Cross multiply
398,934.12x = 550,580.28 × 229,201.08 - Step 4: Simplify right side
398,934.12x = 126,193,594,802.70 - Step 5: Solve for x
x = 126,193,594,802.70/398,934.12 - Step 6: Final answer
x = 316,326.90
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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.