Finding the Fourth Proportional to 275,420.08, 379,993.08 and 154,543.60
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Solution
The fourth proportional to 275,420.08, 379,993.08 and 154,543.60 is: 213,221.56
Step by Step Solution
- Step 1: Write the proportion equation
275,420.08 : 379,993.08 = 154,543.60 : x - Step 2: Convert to fraction form
275,420.08/379,993.08 = 154,543.60/x - Step 3: Cross multiply
275,420.08x = 379,993.08 × 154,543.60 - Step 4: Simplify right side
275,420.08x = 58,725,498,558.29 - Step 5: Solve for x
x = 58,725,498,558.29/275,420.08 - Step 6: Final answer
x = 213,221.56
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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.