Finding the Fourth Proportional to 408,352.64, 612,480.36 and 108,855.68
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Solution
The fourth proportional to 408,352.64, 612,480.36 and 108,855.68 is: 163,270.56
Step by Step Solution
- Step 1: Write the proportion equation
408,352.64 : 612,480.36 = 108,855.68 : x - Step 2: Convert to fraction form
408,352.64/612,480.36 = 108,855.68/x - Step 3: Cross multiply
408,352.64x = 612,480.36 × 108,855.68 - Step 4: Simplify right side
408,352.64x = 66,671,966,074.44 - Step 5: Solve for x
x = 66,671,966,074.44/408,352.64 - Step 6: Final answer
x = 163,270.56
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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.