Finding the Fourth Proportional to 258,282.08, 387,445.36 and 71,293.60
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Solution
The fourth proportional to 258,282.08, 387,445.36 and 71,293.60 is: 106,946.54
Step by Step Solution
- Step 1: Write the proportion equation
258,282.08 : 387,445.36 = 71,293.60 : x - Step 2: Convert to fraction form
258,282.08/387,445.36 = 71,293.60/x - Step 3: Cross multiply
258,282.08x = 387,445.36 × 71,293.60 - Step 4: Simplify right side
258,282.08x = 27,622,374,517.70 - Step 5: Solve for x
x = 27,622,374,517.70/258,282.08 - Step 6: Final answer
x = 106,946.54
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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.