Finding the Fourth Proportional to 145,447.17, 218,375.10 and 74,420.74
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Solution
The fourth proportional to 145,447.17, 218,375.10 and 74,420.74 is: 111,735.66
Step by Step Solution
- Step 1: Write the proportion equation
145,447.17 : 218,375.10 = 74,420.74 : x - Step 2: Convert to fraction form
145,447.17/218,375.10 = 74,420.74/x - Step 3: Cross multiply
145,447.17x = 218,375.10 × 74,420.74 - Step 4: Simplify right side
145,447.17x = 16,251,635,995.93 - Step 5: Solve for x
x = 16,251,635,995.93/145,447.17 - Step 6: Final answer
x = 111,735.66
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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.