Finding the Fourth Proportional to 270,286.18, 372,978.92 and 149,420.26
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Solution
The fourth proportional to 270,286.18, 372,978.92 and 149,420.26 is: 206,191.11
Step by Step Solution
- Step 1: Write the proportion equation
270,286.18 : 372,978.92 = 149,420.26 : x - Step 2: Convert to fraction form
270,286.18/372,978.92 = 149,420.26/x - Step 3: Cross multiply
270,286.18x = 372,978.92 × 149,420.26 - Step 4: Simplify right side
270,286.18x = 55,730,607,200.92 - Step 5: Solve for x
x = 55,730,607,200.92/270,286.18 - Step 6: Final answer
x = 206,191.11
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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.