Finding the Fourth Proportional to 426,480.32, 639,374.80 and 177,348.80
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Solution
The fourth proportional to 426,480.32, 639,374.80 and 177,348.80 is: 265,879.45
Step by Step Solution
- Step 1: Write the proportion equation
426,480.32 : 639,374.80 = 177,348.80 : x - Step 2: Convert to fraction form
426,480.32/639,374.80 = 177,348.80/x - Step 3: Cross multiply
426,480.32x = 639,374.80 × 177,348.80 - Step 4: Simplify right side
426,480.32x = 113,392,353,530.24 - Step 5: Solve for x
x = 113,392,353,530.24/426,480.32 - Step 6: Final answer
x = 265,879.45
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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.